3D PacMan  
very addictive game, awesome idea, but the controlls feel unnatural since you are moveing at diagonals. try unsing the 1,3,7,9 keys on the numpad to represent each diagonal

Cross Country Running  
the tile engine itself isn't bad, but why is the runner a linux penguin that goes ass first?

Space Array  
its a good looking game, and its pretty addictive, but it's way too hard. the prerendered bitmaps are nice, but you should put them into a compiled sprite file. the sound needs work.