Some narrative might be nice. At the moment it's more of a platformer and less of an adventure game. But the platforming was fun. I really enjoyed the triple jump. At one point I somehow managed to fall into the (not so) bottomless pit without dying. Had to jump around a bit off camera to get back to the world of the living.
It's a pity you didn't manage to add sound effects. But that's the way of the jam, right? There's always too much to do in too little time. But kudos to you for making your own assets. They are simple, but I like them. Especially the PC has a charm of its own. I hope you will make more of them in the future.