|This article's title is derived from Japanese|
|... because it was never localized to English in official sources.|
Robo Moley does not appear anywhere in the main game, but appears as a boss in the Field Frenzy sub-game. Occasionally, no boss is fought at the end of a round. Sometimes, however, a boss appears at the end—this boss is either Robo Moley or Moley.
Like Moley in this sub-game, Robo Moley doesn't have any form of attack. It cannot be destroyed, as it takes up all the time at the end of the round. The player must simply tap it as many times as possible within the last three seconds of the round. Robo Moley gives 20 points on the first, fifth, tenth, and fifteenth taps, and gives 10 points for every tap in between.
Robo Moley is a large robotic mole with a small, round nose, a red muzzle-like mouth with teeth, and green sensors for eyes. It has two relatively-small ears that look almost like speaker systems, both of which are not connected to the robot's head. Two gray and red spikes protrude from the sides of its head. The robot also has a red base, metal hands with three red, rectangular fingers on each, and a transparent-blue dome overtop the head. One can clearly see a Mogmole inside the cockpit.
- Robo Moley is the only boss exclusive to Kirby Mass Attack that doesn't appear in the main game.
- When the player taps Robo Moley, both the robot and the Mogmole inside flinch.