Yin Yang

This is a lovely game, purely because of it's originality. You need to use your brain to get past some of the levels, but unlike puzzle games like Doghouse, they don't require any super IQ. There are some very strange glitches, such as pressing the spacebar before the level has fully loaded. If you ever complete a level while battling that glitch, I will worship you forever. It has no colour, but in fact, I think colour would have been a bad idea - Yin Yang doesn't need it. The only colour I saw was on this strange bumblebee creature, featured above. It could move between both the black and white world, and followed your character around. A tip for level 17, do Yin and Yang one at a time - the bumblebee doesn't attack the inactive character.