Movable object
A movable object in Chip's Challenge is a tile category that includes Chip, Melinda, monsters, blocks, and dropped bowling balls and time bombs - basically, anything that moves or can be moved, as the name suggests. The term is useful as an umbrella term when describing game behavior, but the classification itself also has meaning in the Lynx and Steam rulesets (less so in MS) in terms of how they are actually coded.