Nice game, interesting mechanics, was a bit annoyed that they could detect you even if they're facing away from you or when you happen to "bump" into another's bubble that's above you..
There's a minor bug btw, the "masking" ability.
Steps to reproduce.
1. stand below a platform.
2. Jump and use the "mask" ability. (normally mask can't be used when jumping, but if you do it under a platform, then gravity seems to be gone.
3. if you managed to transform while jumping/falling, then keep holding that ability and watch your character float to whatever direction it was going without any collision.