Overhang
Stack blocks as high as you can. Whatever hangs over the edge is cut off, and the next block is that much narrower.
How to play
A block slides back and forth above the tower. Drop it. Any part that hangs over the block below is sliced off, and the next block arrives at the new, narrower width. Miss the tower completely and the run is over.
Your score is the height of the tower.
Clean drops
Land a block almost exactly on the one below and it snaps into line with nothing lost. String a few clean drops together and the block starts to grow back, which is the only way to recover from an early mistake.
The blocks also get faster the higher you go, so the first ten are practice and the rest are not.
Controls
One button. Click, tap, or press Space.