I loved everything about this game (even if the music became a bit annoying at some point).
I wonder how you made that much levels in such a short time ? Did you build a level builder ?
Thanks for feedback!
While designing levels I firstly drew the ideas on paper and then by assigning each tile a certain numeric value in game's code I manually wrote levels as json matrices. You can open folder "levels" in game files and see yourself how they are constructed ;) . It certainly is not a good idea for longer games where programming actual level editor makes everything a lot faster, but for short game jam I guess it was fine.