Rehearse without chat — then hit Start Race.
Viewers type !join to enter, or !join <colour> to pick a colour (see the Colours tab).
Click a card to select it, double-click to edit it in the designer.
40 named colours. Viewers claim one with !join <colour> — first come, first served. Without a colour they get the next free one; after all 40 are taken, unique extra shades are generated.
0 = pure bouncing (classic pong), higher = squares drift towards the finish.
0 = use each level's own delay.