YOU ARE THE CYCLE
You never stop moving. Steer with WASD or arrows. Every cell you leave behind becomes solid light-trail. Touch your own trail, a wall, or a locked block and you derezz.
BLOCKS FALL ANYWAY
Tetrominoes descend into the arena on their own and fall straight through your light — they only rest on other blocks, on wall, or on the floor. Rotate the live one with Q/E, slam it with SPACE, or ram it with your cycle to shove it sideways. Stand under one when it lands and you are paste.
PAINT THE LINE
A row clears when every cell is filled — by blocks or by your trail — and at least one real block sits in it. Light alone will not do it. So: let the blocks land, then paint the gaps around them. Wide gaps are for your trail; single pockets are what the falling piece is for.
BOOST
SHIFT burns energy for double speed. A boosting cycle shatters locked blocks it rams and destroys Sentinels on contact. It does not save you from your own trail.