Space Tetris

HOW TO PLAY. Each time a row is completed, the row disappears and all the blocks above it drop down one row. If there is a hole in a row where you failed to fit a piece, that row will not disappear. Complete levels for points. Each level you advance is more difficult than the level before (blocks fall faster). The game is over if any block gets stuck at the top row of the screen.

CONTROLS. You can play tetris in "tap" or "drag" mode.
With tap control, you tap on the grid to rotate a block. Tap bellow the grid to drop a block. Tap to the left/right of the grid to move a block sideways.
With drag controls, you swipe left and right to place it, tap to rotate it, and tap the down arrow to speed it toward the bottom.