Here is a play-by-play tutorial going through the game:

Here is a clip of the double block break glitch, done by firing on a specific frame after landing: Double block break

He is a tornado strat to get you through the spike hallway in the mirror palace that for some reason I couldn't do in the tutorial:

Here's a series of clips I made with a variety of strategies. Some of these may be slightly out of date or sub-optimal compared to WR strategies (like the twins quick kill clips, which use an old RNG-centric strategy).

Tutorial Stage First boss Stupid dboost Death balloon quick kill v1 Death balloon quick kill v2 Scary bridge jump Toad Fortress Fall 1 RNG Toad boss quick kill (spike wall) Toad boss 1 dmg quick kill (jump needed) Toad Boss 0 dmg quick kill (4 pattern) Fake King ultra quick kill Fake King Quick kill Twins slow backup (fast first charge) _ Twins backup (fast second charge) Twins quick kill Twins quick kill sub 13 Twins fast backup (fast charge -> slow charge) Scythe quick kill Scythe quick kill v2 Scythe Bridge Mirror skip Mirror tower climb 1 _ Mirror tower climb 2

Spike room (tornado) Spike room (single damage boost) Spike room (full tornado)

Doppelganger backup Doppelganger quick kill backup Doppelganger quick kill Doppelganger quick kill (full) Doppelganger quick kill (perfect) Doppelganger quick kill (no dboost) Doppelganger quick kill (skull visual cue) Final stage initial climb Final stage climb Final stage climb 2 Final stage climb 1 alternate start Final stage climb 1 alternate start 2 _