Nice Day is the 17th level in Chip's Challenge 1. The level is shaped like a happy face, and introduces the walker. Originally, the eight walkers are trapped in the corners, but the bouncing pink balls will release them.
Collect the left and right eyes, then the smile from right to left, and out of the four exits in each corner, attempt the southwest one as this is closest to Chip. Perfection is necessary for bold, which will not always succeed because the walkers sometimes mess around with the toggle walls that guard each corner.