In the top left corner, one of the cushions looks cut off, hmm...
As you might know, there are ways to get higher (check How To Play!)
If you time it juuust right, you get get a monstar in the gap to BOUNCE off the shadow, not collide
While it is bouncing, you can have it bounce off your real head
Could this go on forever maybe?
There's a platform in the top left....maybe if you got 'im up there you could bounce off him and get it?
But then how would I get up there? This is a special cannon---it might function a little differently just this one.
Press "hint" again to see the entire solution.
Are you sure you want to?
Put the bridge onto the left side of the screen, send a shadow down to *bounce* him up, do this again & again until he turns around, then get it just right until he lands in the platform. Jump to the bridge and get next to the cannon. It'll release a second monstar just this once so you can get there and jump off the other one and up.