Oops I forgot to specify it's a gbc only game but I forgot to make a check that it can't be played on a DMG gameboy, sorry! I think it has something to do with the plugins I used for gb studio v3 that messes with DMG a lot.
No problem 🙂, the walking part works perfectly on DMG, I'll test on Gbc, but a little message in the update would be nice because I'm not going to be the only one in the future I guess 😉.