Nice game! It was fun, though I did have the same problem of not realizing I needed to click on the level 2 button to go to the next level. I kept trying to jump into it at first until I came back and saw the other comment. Otherwise nice job! One easy thing to add if you're interested is another animation if someone started walking to the right. There were a few times I messed up the trampoline and saw that the animation was the same. I don't know what software you used, but a lot of them have simple options to flip images/sprites which makes it easy to take an animation moving to the left and get another going to the right.