Love the comedy in here, especially the falling obstacles! Kept me wanting to go on to see what would happen next.
I like the feeling of weight behind the boulder, especially crushing all the scattered items. I would love to see the boulder gain speed over time, to emphasize this weight better.
I'd also recommend reducing the screen shake on every jump (maybe have it shake to a degree based on the fall distance, so big jumps get a big shake, but regular jumps don't disrupt the player as much.)