Resonance - Collect the musical keys and use them to resonate the blocks and manipulate the levels. Use that to reach the sign to complete the level. Resonance is a musical platform puzzle game originally created during the Global Game Jam in 2010 in the Netherlands, where it won both the audience award and the jury 1st prize.
Instructions - Move around with the arrow keys. Collect the musical keys and use 1, 2, 3 and 4 to play the notes (after collecting the right keys).