At the very beginning of the level, head to bottom and you'll find a secretive door.

Through the door, you'll find a room with a cannon, a fuse, QBurt and High Jump Dan. First thing, you have to be fast! Grab QBurt and take his fire ability, light the fuse, drop and power and then grab high jump as fast as you can! Race through the blocks using high jump and land in the cannon. May take practice, but it's fun when you get the hang of it!