Really cool game, idea is great and fun! It really makes you think one step ahead! Nice work on the puzzles and on the boxes who moves always with you! At the start I didn't know you could press E again and then be even smaller, maybe more indication on that.
Overall, is a really nice job you did right there. Congratulations!!
Check my game too if you could, please, it has the same vibe of thinking one step ahead!