Upon seeing that the glitchless guide posted here wasn't finished, I had to create my own route for glitchless to follow while I was doing runs. Below is the loosehand guide I made and use during my runs.
Adventure Time: Secret of the Nameless Kingdom: Any% Glitchless Route Abridged *Timing starts on choosing "yes" at name select or "Start Game" if not using saves
Enter Song Temple
-Walk to castle secret entrance
-Use shield to move spike orbs, enter north room
-Break up-left vase, stand on pressure plate, enter north room, then east room
-Walk up stairs, enter west room again, open 20g chest and reenter east room
-Kill skeletons, open key chest, enter south room
-Push block onto pressure plate, enter south room, then east room
-Leave castle
-Navigate to Choose Goose's store, purchase Plastic Baggie
-Navigate to the east island of the Nameless Kingdom, then to the Song Temple
-Show Keyper Plastic Baggie, enter Song Temple
Song Temple
-Enter north room, then west-most north room, then north room
-Throw Dyno-MIGHT at north cracked wall, enter north room
-Navigate east through fire room, go up southward stairs and enter south room
-Defeat porcupines (hit with sword, tap with shield, hit with sword twice), enter west room
-Open key chest, jump down ledge and enter south room
-Unlock and enter locked west room, enter 1B via north stairwell
-Enter east room, then east room
-Defeat magic pigs, take damage from one or if possible, enter south room
-Solve flame puzzle, open key chest, navigate back to 1B stairwell
-Unlock and enter west room, go up southward stairs, throw Dyno-MIGHT at east cracked wall, enter east room
-Damage down to half a thump, walk over bridge and enter north room and open Grabby Hand chest
-Die to skeleton to deathwarp to temple entrance
-Enter north room, then east-most north room
-Baggie one Dyno-MIGHT, throw Baggied Dyno-MIGHT at east Color Switch, baggie two more Dyno-MIGHT while waiting for thrown Dyno-MIGHT to explode, hit Hand Switch, enter north room
-Push block onto pressure plate, stand on other pressure plate, open key chest
-Enter south room, then south room, then north-most east room
-Throw Baggied Dyno-MIGHT at south cracked wall, enter south room
-Go up southward stairs, unlock and enter west room, walk across bridge to Hand Switches
-Hit Hand Switches in order: (Middle, Left, Mid-Right, Mid-Left, Right) [Piano, Tambourine, Bagpipe, French Horn, Xylophone]
-Enter west room, kill all enemies, go up southward stairs, enter 2F via south stairwell
-Enter east room, solve Color Switch puzzle, enter east room, walk south and enter south-most east door
-Hit top Color Switch, open key chest (top), hit any Color Switch, unlock and enter west room
-Damage down to half a thump, destroy west-most north pots, stand on pressure plate, go on northward stairs, enter north room
-Throw Baggied Dyno-MIGHT near red chest, open boss key chest, die to Dyno-MIGHT to deathwarp to temple entrance (Backup if no more Dyno-MIGHT: Jump down ledge, die to skeleton)
-Enter north room, then west-most north room, then west room
-Enter 1B via north stairwell, enter east room, enter boss room
-Defeat Electric Apes, pickup Thump Container, enter north room, warp out of Song Temple (Try to kill last Electric Ape near north door)
Enter Dream Temple
-Navigate to shops on north island of the Nameless Kingdom, enter Video Store on screen east of shops
-Grabby Hand the cabinet, pick up Heat Signature, exit Video Store
-Go south two screen scrolls, destroy bush at north-west of screen, enter staircave
-Talk to Shelby, trade Heat Signature for Mind Games, exit staircave
-Navigate to west area of Nameless Kingdom (southwest of northern part)
-Go on southward stairs, go south one screen scroll, Grabby Hands Poot from Butt Rock
-Navigate to the east island of the Nameless Kingdom, then to the southern bridge
-Talk to Cinnamon Bun, give Poot, continue across bridge
-Go east two screens, Grabby Hands Tiny Manticore
-Navigate to west area of the Nameless Kingdom (southwest of northern part)
-Follow path west, then south, ending east at Magic Man's hut, enter Magic Man's hut
-Talk to Magic Man, trade Tiny Manticore for Flambo, exit Magic Man's hut
-Follow path back north, instead entering a northward cave instead of taking the path east
-Navigate through and exit cave, walk east, enter northward cave
-Navigate through and exit cave, follow path to cave entrance, enter northward cave
-Navigate through and exit cave, walk west across bridge, enter northward cave
-Navigate through ice cave, talk to Ice King, trade Mind Games for Fanfiction, exit cave through entrance
-Walk west across bridge, follow path westward to Dream Temple
-Light torches outside Dream Temple with Flambo, enter Dream Temple
Dream Temple
-Enter north room, follow left counterclockwise path, Baggie one Dyno-MIGHT, open key chest
-Follow right clockwise path, open key chest, enter east room
-Unlock and enter northmost east room, throw Baggied Dyno-MIGHT at east cracked wall, enter east room
-Follow eastmost path, go on northward stairs, enter west room
-Open Hero Gauntlet chest, push block, enter east room
-Go down southward stairs, enter west room, then west room
-Push block in southeast of room, enter southmost east room
-Solve puzzle, open key chest, enter west room
-Enter northmost east room, push block, enter northmost west room
-Unlock and enter northmost west room, hit Color Switch, enter 2F via north stairwell
-Enter east room, then east room
-Light torches, go on northward stairs, enter southmost east room
-Open key chest, jump down ledge, enter west room
-Unlock and enter west room, hit Color Switch, then hit Color Switch from afar with Flambo, go on northward stairs and hit Color Switch, stand on pressure plate, hit Color Switch, enter eastmost north room
-Go on northward stairs, open key chest, enter eastmost south room
-Navigate to and enter west room, solve puzzle, enter south room
-Defeat magic pigs, enter east room
-Run through fire if have enough health, push block on pressure plate if not
-Unlock and enter 3F via northmost east stairwell
-Hit Color Switches, enter north room
-Light all torches, enter east room
-Go to north of room, push block on westmost pressure plate, open key chest
-Push block off pressure plate to broken bridge, push block from corner to broken bridge
-Go to south of room, solve block puzzle, enter west room
-Light all torches, open key chest, enter east room
-Push bottom block to broken bridge, enter east room, then south room
-Hit Color Switches, enter east room
-Solve puzzle, enter north room
-Hit Color Switch, enter north room
-Go on northward stairs, jump down ledge, defeat all enemies, enter 2F via westmost north stairwell
-Enter 1F via westmost north stairwell
-Open boss key chest, enter 2F via north stairwell
-Enter 2F via north stairwell, enter 3F via eastmost north stairwell
-Unlock and enter 4F via eastmost north stairwell
-Enter west room, defeat all enemies, go on northward stairs, enter south room
-Navigate through room, Baggie one Dyno-MIGHT, go up southward stairs, enter east room
-Stand on westmost south pressure plate, then north, then enter north room
-Enter east room, solve puzzle, enter south room
-Defeat all enemies, enter 3F via south stairwell
-Go across bridge, enter west room
-Solve puzzle while defeating all enemies, open key chest, enter west room
-Go across bridge, enter 4F via north stairwell, go on northward stairs
-Unlock and enter west room, stand on eastmost south pressure plate, then north
-Go on either southward stairs, repair bridge with blocks, go on either northward stairs
-Go across bridge, enter 3F via south stairwell
-Baggie one Dyno-BLAST (should have at least two Baggied Dyno-BLASTs), go across bridge, enter east room
-Throw one Baggied Dyno-BLAST over cracked floor, defeat all enemies, go on southward stairs
-Enter 2F via hole in the floor, enter east room, throw one Baggied Dyno-BLAST over cracked floor
-Enter 1F via hole in the floor, enter north room
-Defeat all enemies, enter northmost east room
-Stand on pressure plate, go on northward stairs, enter boss room, enter north room
-Defeat Crystal Guardian, pickup Thump Container, enter north room, warp out of Dream Temple (Guide for Crystal Guardian: https://docs.google.com/spreadsheets/d/1szI_DTXcEiymH22QkdhyKnQYbrZhpxK603F_Ft4Nwp4/edit?usp=sharing)
Enter Fear Temple
-Navigate to the east island of the Nameless Kingdom, then to the southern bridge
-Follow path to south region of the Nameless Kingdom
-Navigate to cave near sourthern center of south region, enter cave
-Talk to Coal Man, trade Fanfiction for Honey Energy Drink, exit cave
-Travel northeast to Fear Temple, enter Fear Temple
Fear Temple
-Enter north room, then east room
-Light both the torches, enter northmost east room
-Go over bridge, enter north room, then west room
-Go over bridge, enter south room, light all torches
-Go on northward stairs, enter west room
-Defeat all enemies, enter northmost east room
-Baggie one Dyno-MIGHT, solve puzzle, hit water paddle, go on southward stairs, enter B1 via north stairwell
-Enter westmost north room, then north room
-Enter west room, push block to north bridge, hit Grabby Hands paddle
-Enter north room, then east room
-Enter south room, then east room
-Enter north room, pickup Lady Rainicorn's Ring
-Solve puzzle, hit Hand Paddle, enter 1F via north stairwell
-Jump down ledge, hit water paddle, go on southward stairs
-Use Lady Rainicorn's Ring, jump over east gap, stand on pressure plate
-Reunite with Jake, enter east room, then east
-Go on northward stairs, enter east room
-Solve puzzle, enter northmost west room
-Hit water paddle, go on northward stairs
-Push blocks into position for Jake to jump on, go on southward stairs, hit water paddle
-Use Lady Rainicorn's Ring, jump on blocks, stand on pressure plate
-Swap to Finn, run across bridge, Reunite with Jake, enter north room
-Hit water paddle, go on southward stairs, push block to repair bridge
-Push blocks to make path for Jake near north of room, go up northward stairs, hit water paddle
-Use Lady Rainicorn's Ring, navigate with Jake through room, stand on pressure plate
-Swap to Finn, reunite with Jake, enter westmost south room
-Hit water paddle twice, go over bridge, hit water switch, enter east room
-Hit Hand Paddle, jump down ledge, enter west room
-Use Lady Rainicorn's Ring, jump over north gap, push blocks to repair bridge, reunite to Finn
-Go on north bridge, hit water paddle, enter east room
-Hit Hand Paddle, enter west room, hit water paddle, go on southward stairs, enter south room
-Use Lady Rainicorn's Ring, jump over south gap, stand on pressure plate
-Reunite with Jake, enter east room, stand on pressure plate
-Go on northward stairs, enter north room, go over northward bridge
-Stand on pressure plate, enter north room
-Go on northward stairs, go on westmost southward stairs, enter west room, then west room
-Go on northward stairs, defeat enemies, stand on eastmost pressure plate
-Use Lady Rainicorn's Ring , go down southward stairs
-Push block to repair bridge, go on northward stairs, go over bridge, stand on pressure plate
-Swap to Finn, stand on pressure plate before bridge
-Swap to Jake, reunite with Finn, enter northmost east room
-Defeat enemies, enter south room
-Hit east Hand Paddle until bridge is from north to east
-Hit west Hand Paddle until bridge is from west to south
-Go over bridge, Baggie Dyno-BLAST (two total), enter east room
-Go on northward stairs, hit Hand Paddle, go down stairs, enter west room
-Go over bridge, hit east paddle until bridge is from south to east
-Hit west paddle until bridge is from north to west
-Go over bridge, throw one Baggied Dyno-BLAST over cracked floor, enter 1B via hole in the floor
-Open boss key chest, jump down ledge, die to enemies to deathwarp to temple entrance
-Enter north room, then east, then northmost east, then north
-Go over bridge, enter north room, go on northward stairs
-Use Lady Rainicorn's Ring, stand on eastmost south pressure plate
-Swap to Finn, go on westmost northward stairs, go on westmost southward stairs
-Stand on pressure plate, go on westmost northward stairs, go on westmost southward stairs
-Reunite with Jake, enter 2F via north stairwell, enter 3F via eastmost north stairwell
-Defeat all enemies,, hit Hand Paddle, go on southward stairs, enter east room
-Push block to repair northern bridge, go on northward stairs, hit Hand Paddle
-Light torch, go over bridge, light torch, go over bridge
-Hit Hand Paddle, go on southward stairs
-Light torches, push blocks to repair south bridge, go on northward stairs, enter west room
-Go on southward stairs, push blocks to repair bridges, go up northward stairs
-Hit water paddle, go over bridges, use Lady Rainicorn's Ring
-Jump over gap as Jake, stand on pressure plate, reunite with Finn
-Go on southward stairs, go on northern stairs, enter east room
-Hit water paddle, open key chest, enter west room
-Use Lady Rainicorn's Ring, jump over gap as Jake
-Jump down ledge, defeat all enemies, go up northward stairs
-Stand on pressure plate, swap to Finn, reunite with Jake, enter northmost east room
-Throw one Baggied Dyno-BLAST over cracked floor, Baggie one Dyno-BLAST while waiting for explosion
-Enter 2F via hole in the floor, walk over bridge, enter boss room
-Defeat Shadow Finn, pickup Thump Container, enter north room, warp out of Fear Temple
Enter Nameless Castle
-Navigate to and enter the Totally Freaky Dungeon
-Enter north room, defeat enemy, open key chest
-Enter north room, then north
-Open boss key chest, enter boss room
-Defeat skeleton, enter north room, unlock Slammy Hand
-Exit Totally Freaky Dungeon, navigate to the east island of the Nameless Kingdom
-Navigate to and enter cave nearby Song Temple, enter east room
-Enter north room, then north
-Talk to Party Pat, trade Honey Energy Drink for Bug Milk
-Enter south room, then south
-Enter west room, then exit cave
-Navigate to graveyard in the northwest region of the eastern island
-Talk to Nightosphere Demon, trade Bug Milk for the Enchiridion
-Navigate to northern island of the Nameless Kingdom, then to the Nameless Castle
-Interact with the ancient statues in the castle courtyard, enter the Nameless Castle
Nameless Castle
-Enter north room, go on southward stairs
-Stand on northwestmost pressure plate, go on northward stairs
-Hit Hand Paddle, go on southward stairs, enter westmost north room
-Go on eastmost northward stairs, hit Hand Paddle until eastmost bridge is from north to east, go across eastmost bridge
-Hit Hand Paddle until eastmost bridge is from north to west, go across bridges
-Hit Hand Paddle until westmost bridge is from west to south, go across westmost bridge
-Hit Hand Paddle until westmost bridge is from west to north, go across westmost bridge
-Hit Hand Paddle until westmost bridge is from north to east, go across bridges
-Hit Hand Paddle until westmost bridge is from south to east, go across westmost bridge
-Go on southward stairs, open key chest, enter south room, unlock and enter westmost south room
-Solve puzzle, enter westmost north room
-Stand on pressure plate, throw one Baggied Dyno-BLAST at cracked wall, enter east room
-Enter eastmost north room, solve puzzle, enter north room
-Open key chest, defeat all enemies, enter south room, then south room
-Stand on southeastmost pressure plate, go on northward stairs
-Hit Hand Paddle, go on southward stairs, unlock and enter eastmost south room
-Push blocks to repair bridge, go on northward stairs, go across bridge
-Enter north room, go on northward stairs, defeat all enemies
-Go on northward stairs, enter east room
-Go across bridges, enter west room
-Baggie Dyno-BLAST, enter 2F via southwest stairwell, enter 3F via north stairwell
-Throw Baggied Dyno-BLAST on cracked floor, enter 2F via hole in the floor
-Open key chest, jump down ledge, enter west room
-Unlock and enter eastmost north room, solve puzzle, enter east room
-Stand on pressure pad, enter south room
-Push blocks to repair bridges, go up northward stairs, enter west room
-Push block on northmost pressure plate, open key chest, stand on southmost pressure plate
-Go on southward stairs, enter eastmost south room
-Navigate through room, stand on both pressure plates, defeat enemy, go on northward stairs, enter north room
-Push block on southmost pressure plate, open key chest, stand on northmost pressure plate
-Unlock and enter westmost south room, defeat all enemies, enter south room
-Light all torches, go up westmost northward stairs, enter westmost north room
-Go on southward stairs, navigate through room, step on pressure plate
-Go on northward stairs, enter east room
-Push block on southmost pressure plate, open key chest, stand on northmost pressure plate
-Unlock and enter westmost north room, solve puzzle, enter west room
-Go on southward stairs, enter east room, then east
-Push block on northmost pressure plate, open key chest, stand on southmost pressure plate
-Enter east room, enter 3F via north stairwell
-Enter southmost east room, go on northward stairs, solve puzzle
-Enter south room, open key chest, enter north room, go on southward stairs, enter west room
-Enter northmost west room, open key chest, enter east room
-Unlock and enter east room, go up northward stairs, enter west room, hit Hand Paddle, jump down ledge
-Unlock and enter northmost locked west room, defeat all enemies
-Go on northward stairs, enter east room, hit Hand Paddle
-Jump down ledge, unlock and enter southmost east room, then east room
-Stand on pressure plate, then pressure plate, then stand on both pressure plates
-Enter west room, then west
-Enter southmost east room, go on northward stairs, enter west room
-Go across bridge, enter west room, then west room
-Navigate through room, enter northmost east room, then east room
-Go across bridge, enter east room, go on southward stairs
-Hit Hand Paddle, go on northward stairs, enter northmost west room
-Stand on pressure plate, jump down ledge, enter eastmost south room
-Light all torches, go on northward stairs, enter north room
-Go across bridges, enter north room
-Open boss key chest, jump down ledge, go on northward stairs, enter boss room
-Defeat Nightmare Princess, talk to Nightmare Princess