Tip: If you place a moon, midpoint, or dragon coin through Map16, it will always respawn whenever you reenter that sublevel. It will not respawn if you add it through the Add Objects/Extended Objects window.
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!
There is a glitch: the sprite ignore the code in line 94-96 and "eat" the blocks even there isn't any, so it make the shatter effect and sound effect when it is not supposed to.
The sprite is not supposed to eat tiles 25 (or that act like 25). You can even see the glitch in the .gif above.
To fix it, the RAM address that detect which map16 tile is detected need to be changed
aka line 94 replace $18A7 with $1693
There's also another error, one address isn't converted into SA-1, making the sprite always face left even when going right.
To fix, on line 157 change $157C,x to !157C,x