Tunnel becomes simple once you stop trying to send Baba through the passage. Make a long linear object the player character, slide it through the tunnel, then restore Baba on the far side.
Why It's Hard A one-tile-wide tunnel stretches across the entire map. Baba can't turn around inside it, and text blocks are too large to push through.
BABA IS YOU.STOP.Change who "YOU" are to something smaller or something that doesn't need to turn around — like a wall tile.
WALL beside the IS YOU lane so you can swap control without breaking the rest of the board.WALL IS YOU and confirm that the controlled wall segment already lines up with the tunnel entrance.BABA IS YOU or attach WIN to a reachable object.The tunnel only blocks objects that need to maneuver inside it. A long straight object does not need to turn, so the real solution is to change the identity of the player, not the shape of the corridor.