Really awesome game!
For the secret medals, here are some hints:
1. See Fooliolo's review if you're stuck on the level numbers.
2. There's a level that completes itself.
3. There's a (very easy) level with WAY too many extra blocks. ;D
That's all the help anyone should need.
Now, I think this is a very good game- the concept is sound and it's executed well- the only things I'd change are:
The music- it was too short a loop to play for such a long game.
The movement speed- Simply put, I want to go FASTER.
For those two things, I would have to reduce my rating from a 10/10 to a 9/10.
Still, an amazing game! 5/5