Cellblocked is the 16th level in Chip's Challenge 1. The structure of Cellblocked is a maze constructed entirely of recessed walls, in a 7x7 grid of 3x3 rooms with a gnomon border to the southeast, with seven 3x2 rooms on the south and east side, and the exit in a 2x2 room in the very southeast. This structure is almost completely identical to Colony, except that there the exit is in the southwest and the gnomon is on the south and west sides. The route through Cellblocked, by room, is R 3D RUR 2U R 2U LU 5L DL 4D R 2D 5R URD.