Medium damage to one foe. Inflicts Mute and ignores Guard.
Inflicts Confusion on one foe.
Damage to one foe. Lowers Guard.
Damage to one foe. Inflicts Poison.
Light damage to all foes. Lowes Guard and user recovers MP.
Heavy damage to one foe. Inflicts Shock.
The demon's original appearance in Megami Tensei is meant to look like the game is rendering the sprite of a Baku incorrectly.
In the original Famicom version of Megami Tensei, while fighting a Bug, if the player held down the A, B, Left and Down buttons on the second controller and auto-battled the Bug, a message would appear saying "Cabu-chan begins debugging".