Ngl I like this one, but I have a grudge, I think that it would make the game a lot more interesting if instead of adding to the level at the end of the previous part, it somehow altered the part we already played to make it harder, that way the player isn't forced to play with the same parts over and over again just to get to the new stuff. Other than that, it's awesome, especially for a first game jam entry!
Good job!
9/10 ^^