Many levels in JUMP are just unsuitable for individual level running. Other levels are boring. Here is a list of the levels that, in my opinion, are more fun to run. If anybody has any suggestions, I might add it to this list or give a rant explaining why the suggested level is bad. You can also suggest me to remove a level from this list.

Here goes:

Mushroom Ledge Secret + Filtered Chuckleton Plains Normal + Filtered Bastion in Blue Secret+ Filtered + No Switches Baseball Mountain Disco Dance Party Chains of Atrophy Normal + Filtered Gourmet Hindrance + Switches / No Switches Disarray Pixel Perfect + Filtered Pipes in Literally... + Powerups Land of the Jolly Tan + Powerups Effortland + Powerups Euphoric Mushroom Backyard Roy + Powerups + No Switches Blockomancy + Powerups Spring Green Spelunking + Powerups Tunnel of the Living Rock + Filtered Fortress of Koumei's Trap Rapture of the Deep Normal Peek-A-Boo Secret + Powerups Siberian Precipice + Normal + Powerups + No Switches Peaks of Revolution + Powerups Glacier Soup + Powerups + No Switches Cool Kickin + Powerups + Normal / Secret Switch's Yellow, Yo Efficient Heat System + Powerups Melt a Meat Locker + Filtered + Switches Aquiferic Pressure Normal (Kappa) Under Construction + Powerups + DC's Boiling... + Powerups + Switches + DC's Crumbling... Perilous Pier + Switches + DC's / no DC's Swim with the Stars + Powerups Horse Eating DIsorder + Powerups + DC's Spike Toss + Powerups + DC's / no DC's Angry Fish Bridge Engineering + Secret Rope is Nightmare + Filtered Fortress of the Giant Monsters + Powerups Manky Bridge + DC's + Filtered + Switches Mushroom Tripper + DC's + Filtered + Switches Smog + Powerups + No Switches Ruins + Powerups + No Switches House of the Holy + Secret + Powerups The Green Switch Get the Normal Exit + Normal / Secret (Kappa) + Filtered / Powerups The Trees are Dead + Powerups Lava Gap + Secret + Filtered Industrial Interior + Powerups + Switches Skulliloquy + Powerups Root of Yggdrasil + Powerups + Switches + DC's Scaffolding Shuffle + Powerups + Switches Ludwig's Grindhouse + Powerups Thwomps + Powerups + Normal / Secret Impetuous Athletic + Powerups / Filtered + Switches / No Switches Bowser's Castle + Filtered + No Switches Tactical Ambush Operation + Filtered + DC's Ultra Final... + Powerups Misc Monument + Legit + Switches / No Switches + DC's / No DC's Depraved Stronghold + Powerups, Switches / Filtered, No Switches Shattered Dreams + Powerups Shell Sticker + Filtered 1F8

As you can see, I tend to stray away from annoying levels or mostly autoscroll levels. I might remove a few for the sake of "less is more", but that's all for the time being.