I think it's broken. The "knock 3 men down" quest never gets fulfilled, and I've just reached the end of the line, but instead of finishing, my burger kept flying upward into a black screen...
Actually, several of the upgrades don't seem to do anything much... 2/5 because not fully formed as a game, but lots of potential to do better, and fun to play. Keep at it!
There's a bit in the bay where I got stuck sort of on the land, but enough in the water not to lose air, and then couldn't move. It would be great if you could either fix this, if it's a bug, or more generally add a quit/restart button. Thanks!