Spirals is the 88th level in Chip's Challenge 1. One of the most notorious glitches in Chip's Challenge occurs in some versions of Spirals: the Spirals corruption, which has instead of floor at grid coordinate [29, 13], a thin wall east, making the level infinitely harder and at a full 5 rating. The source of this is the original Lynx version, which was changed to the official version in the Commodore 64 and eventually the MS version because walker behavior is different. However, some copies never got the change. For more information and how to complete this version, read the page on the corruption. If your version contains the corruption, you can use a level editor to change the offending grid coordinate to floor.