You must do seemingly impossible tricks to complete some of the levels. Same controls as the original, obviously. Hint: You stay invincible for longer after respawning if you wall-jump depending on how long you do it for.
ALL LEVELS ARE POSSIBLE (I guess) (Although very tricky). NOTE THE PURPLE MOB IN THE EDITOR IS GLITCHY SO DON'T USE IT Credits to @Griffpatch for the existence of Appel v1.4, @Legobouwer9 for the Appel character sprite, @ottobunny for a brief tutorial on how to add custom levels, @ninjanibb for the smooth size change script for the title, Nintendo for Super Mario Bros, Rovio for Angry Birds, and everyone who worked on Mission: Impossible. Oh yeah, that's right, also thanks to Google, YouTube, and some royalty-free sound effect library websites.