⬛ STACK RULES
1A block slides left and right at the top of the screen. Tap / Click / Space to drop it.
2Only the part that lands on the previous block stays. The overhanging part is cut off.
3Each perfect drop (zero overhang) earns a PERFECT BONUS and the block grows wider.
4If you miss the stack entirely, it's GAME OVER.
5Stack higher to level up — each level speeds up the moving block. Survive as long as you can!