Amazing visual novel :)
This game is one of the best I've found on itch.io! The four different characters each had well-developed abilities and personalities. I especially liked when the characters could interact with each other (e.g. C picking up B). The difficulty level ramped up well, and even the most difficult levels always felt fair to the player. The platforming is strong, but the puzzle-solving aspect especially shines. There aren't necessarily multiple ways to solve each puzzle, but the fun is in unraveling each knot to figure out how the level works. The time loop platforming was such a unique concept executed really well. Even if you realized you messed up and had to start over, each level was short enough that it didn't feel punishing, and you could see the whole level from the beginning, so there were no surprises. Some of the harder levels were also optional (i.e. branching paths), so if you wanted to skip them you could. Timer was very helpful to sync up moves. This is also a great game to play co-op: strategizing with a friend to solve the puzzle, then simply changing who is platforming each character. It lets everyone do some fun platforming while feeling like their own character in the game. The story is simple but offers a poignant decision at the end. Good music that we never got tired of. One thing that was a little cumbersome was having to continually spam the space bar to make C keep flying, rather than being able to hold the spacebar down--we had to use two hands to make it work.
Overall, incredible work! Thank you for sharing this game!