I had a lot of fun playing it but couldnt complete it,the staircase part with the spikes is very tedious maybe you could checkpints after each steps,also more animations would be nice, theres no SFX but i think that would greatly benefit the experience and the theme music is too low,i could barely hear it,maybe try upping it. It would be nice if your colour changed depending on the ability of the pet you used. overal nice game but needs some polishing.
If you have time heres my game: https://itch.io/jam/platformer-jam-2/rate/4726080