Sketchfighter 4000

Sketchfighter 4000 is a cool Mac game that looks like hand drawn doodles of an early video arcade game:

Sketchfighter 4000

“Remember those super-cool space ships you doodled on graph paper in Middle School? Pen strokes furiously waging massive intergalactic battles in History class with the fate of humanity hanging in the balance? Well they have sprung to life in SketchFighter 4000 Alpha!”