Portal Switch

Flip the portal pairs. Guide the marble to the exit.

Choose a Level

★ 0 / 30

Press GO to roll the marble.
Rings of the same color are a portal pair. Only one pair is active at a time.
Tap a ring (or a color button) to switch which pair is active — even while the marble rolls.
An active ring sends the marble to its twin. Inactive rings are just floor.
Walls bounce the marble back. Purple mirrors turn it. Dark holes reset it.
Reach the flag. Grab the gold stars on alternate routes for up to 3 stars.
Keys: Space = GO, 1-4 = pairs, P = pause, R = retry, M = mute.

★★★

★★★

You switched every portal and guided the marble home.