Tip: Switch palace switches normally disappear if you replay the level. However, if you insert them as direct Map16 and use the hex-edit at $00EEB2 in the ROM map, you can replay the level without a problem.
A 16x16 chomp that travels horizontally through the air and replaces tiles it encounters with tile 25. If the extra bit is set, it will eat any tile, and if it isn't, encountering a solid tile will make it disappear. Best used in levels where the walls are made up of one-tile-high bricks, to avoid cutoffness.
**NOTE: Don't use in conjunction with slopes, Layer 2 levels, or vertical levels!