Got so far, five orbs in before the Game Over...
Nice platformer overall, varied obstacles, good controls, maybe not the most intuitive game over screen (was killed by an 'unknown' once -was supposed to write how I did in the comments but I'm not sure how :P), and there's one orb it seems you have to sacrifice a life to get (right under a platform without ground below it), but overall this was fun.
Medal though... does it unlock if you complete the game? Doesn't unlock when I start it...
-cd-