Swap panels, line up three or more, and keep the stack from reaching the top.
Endless and vs CPU: arrows or WASD move, X/Space swap, Z raise. Versus, left:WASD move, F swap, G raise. Versus, right: arrows move, / swap, . raise. Controller: d-pad or stick move, A/B swap, bumpers or triggers raise, Start pause. Esc, P or Start pause, R restart. Versus is first to 3 rounds.
Paused
Move
Swap
Raise
One player
arrows, WASD
XJSpace
ZKShift
2P left
WASD
F
G
2P right
arrows
/Num 0
.Num .
Controller
d-pad, left stick
AB
bumpers, triggers
Esc, P or Start pause and resume. R restarts (not online).
In 2P versus the first controller plays left and the second plays right. In menus, use
the d-pad or stick and A; B goes back.
Online
Play a friend over the internet. Make a room and send them the link, or join theirs.