Invalid Tangram is a shmup that could have came right out of Kenta Cho's deep pockets, featuring tangram-shaped objects in four different colors. Enemies turn into blocks when destroyed, slowly filling up the background which can then be absorbed in multiples of two and above for a temporary power-up.
A handy tutorial explains most of the controls, though only two buttons are required along with the arrow keys for directional movements. Absorbing blocks will also award the player with three precious seconds worth of additional play time.
