this game is not good
i hate to be harsh to a game made in a game jam but this seems like a game hastily programmed together with forgettable levels that blend together, bad physics, and an art style that is clearly taking random unity assets and mashing them together
if this was game submitted right at the end i would understand maybe the dev didnt have enough time but this was submitted very early so i think if this game wasn't rushed out early it could be decent
i would recommend adding a variable jump height to the game (a jump is shorter if you just tap the jump button then i you hold it) and make a few better levels as well