There seems to be some issues with the movement here. Especially the jumping. In some cases, it wasn't responding and I kept dying.
I think your tutorial needs a bit more work too. Even though I found the fireworks to be fun to move around, having a bunch of text placed on the wall and explaining how they work is a bit tedious. Placing fireworks on objects, just so they could reach the button, was really difficult to do.
Was there any audio? I didn't hear anything.