This game is awesome, but I might be dumb cuz I couldn't figure out how to progress after reaching the first purple checkpoint (the thin tall room with nothing but moving platforms and acid on both floor and ceiling). I got the battery block to the platform but couldn't get out of that room. Everytime I'd flip gravity to where I could reach the door, the door would close. My favorite part of the game is the animations (on death and transition between levels). Overall great game!