|The unstoppable marching bombs! Boomstepper!|
— In-game quote
Bomb Mode is one of the Robobot Armor modes. It equips Kirby's mech with dual canisters filled with walking bombs known as Boomsteppers. Kirby can deploy these bombs, which will then walk a set distance and explode on an enemy or other target. The boomsteppers can also climb up walls before exploding. A maximum of four can be out at any one time. Deploying a fifth will cause the first to explode immediately.
|Bomb Mode's Moveset|
Press and release B
|The armor throws the Boomstepper from its mouth.|
The Boomsteppers can walk on walls and will explode when touching any enemy or destroyable obstacle.
|Change Throw Angle||
|The armor can increase the throw angle of 'Boomstepper'.|
|The armor can hold three Boomsteppers in each caliber on the sides.|
The armor shifts its caliber while throwing Boomsteppers.
The armor reloads immediately when both calibers run out of ammo.