Playable Gameboy Tetris. The bricks are stored in the battery compartment. Print 6 sets of bricks to fill the battery compartment. I originally saw this in a local store and asked where they found the file, I found Markus710's file on Printables so I could print this for a Christmas gift for my son. I used a paperclip for the hinge pin on the battery compartment. I added multicolor printing for the stand, arranging items on plates for ease of printing in single color, and arranged parts for cleaner printing (don't auto arrange the blocks or the straight block will get wonky).