This is a really good puzzle game! Would love if the fusions had some extra effects, like ignoring rocks or moving differently, but I do understand that the game would become way more complex with that. Loved art and music!
Thank you so much for your feedback! What you described was on our list to do and there's actually already a bit of code written for that kind of mechanic, but we didn't have time to implement it. If we continue with the game, that will definitely be a feature. Thank you again!