Every loop lasts a few seconds. When time runs out, everything you did is recorded and replayed by a translucent echo of you.
Pressure plates stay open only while something stands on them. Switches latch until the loop ends. Let your past selves hold the doors open for your present self.
Move ←/→ or A/D · Jump Space/W · Interact E · End loop early L · Restart level R · Menu Esc