- Tap to slice and stack sliding blocks, building a tower as high as you can.
- Only the overlap with the previous block survives; no overlap means game over.
- Perfect aligns grant a small width boost and bonus points to extend your run.
- Clean light-mode UI, compact typography, sound/haptics, autosave, and 1-step undo.
- Single-file HTML/CSS/JS, fixed 500×800 aspect; auto scales down with letterboxing.
