-----Controls----- Click - Throw boomerang in direction of cursor A - Move left D - Move right W - Jump -----Terrain Guide----- White collides with everything, only boomerangs can pass through a cyan area, and only the player can pass through a red area.
Credit to @griffpatch_tutor for almost everything. Credit to http://inventwithscratch.com/ for the boomerang idea to combine with platforming.