One input, two mirrored runners. Your keys drive the cyan runner and its
violet mirror at the same time: press left and the cyan one goes left while
the violet one goes right (up/down and digging are mirrored too). Holes are
shared on the one grid — dig with care, since a hole one runner makes is real
for the other. Move & climb with Arrows / WASD (no jump — you fall
with gravity). Dig down-left with Z/Q, down-right with
X/E (brick only; it refills and crushes anything inside). Solve each
level as a synchronized puzzle: trap the guards, grab all the gold, then get
both runners to the escape ladders at the top. P pause,
R restart.
