Really cool game, you made some really good puzzles! The big problem is that some of the puzzles are presented badly so it is easy to get stuck and instead of solving them, I just tried random stuff until I solve them. For example I got stuck at the first "friend" puzzle because I didn't understand that my "friend" needs to exit att the same time as me.
Also it was really hard to read the text in game, try to use more easely read fonts without flickering when you have more then two word, or some people will have a really difficult time playing your games!
Overall, you have really awesome game and i will definitely take some inspiration from it next time i will make a puzzle game! Great job!