UPDATE LOG: 1.0: Created engine! Yay! 1.1: Fixed some bugs. 1.2: Gravity update, fixed some bugs. Wall jumping and ceiling clings added. Cat flings itself off of the platform when ceiling-clinging and walking "off" edge. Wall jumps only work on right wall/any walls with thin colors. 1.3: Hid sensor sprite fully. 1.4: Added two new platform sprites. Hold space to travel up the ladder. 1.5: Changes to wall cling. You can wall cling to cyan but you bounce off of purple. 1.6: Purple now makes you bounce, up or down, rather than just being the bottom of a platform. Bug where you fall faster after jumping than after falling off the edge of a platform fixed. Ladder deleted; replaced with two new sections and a trampoline. 1.7: You no longer bounce up to the height which you fell from, but slightly lower. 1.8: Trampolines! If you touch the neon green color, you go shooting into the air! 1.9: The audio update. Fixed a glitch where you could jump after shooting off a trampoline. Music added, with a jump sound. Also, if you hit the ground too fast, a *smack* sound plays.
Credit to griffpatch for the cat sprite sheet. Arrow keys to move, space to jump. ******WARNING: Works OK in turbo mode (shift-click) but hard to make jumps.******