It's not often you see a good puzzle based game in a jam. A lot of games use puzzles, but it's not normally their main focus.
I also feel that there needs to be some kind of progress protection system to give you a break from constantly being killed by the same puzzle after solving it (by luck or skill).
For a first jam though this is a really solid entry. I really liked the thought that went into the main menu screen with all of the little easter eggs for the game.
Well done, and thanks for the game.