Very cool game! There are a lot of similar themed games, howewer your entry limits the freedom by only letting certain sizes of objects and only letting you carry some of them, and this limitation along with brilliant level design makes it a much better puzzle, with focus on solving the problem, instead of fooling aroung with physics or pixel-hunting unintended solutions. I really like the puzzles, I like portal-like humour in the posters, visuals are simple but fitting and consistent, I like sound design and attention to detail in sound a visual cues. There are minor problems, i.e. I didn't notice any message on getting "self" ability so I had to just try mouse wheel and find it. And later ability set is different every level, I would appreciate a message at beginning of each level telling me which abilites I have. Overall - great game, great take on the theme, great job!
P.S. I'm sorry to say that but level 8 has a gap to the right of the gate that a player can walk through 😐