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KPR COGS battle 1.png
Intact C.O.G.S. in Kirby: Planet Robobot
First game Kirby: Planet Robobot (2016)
Similar to Kabula
Theme music

no music given

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Quote1.png A geared-up base made of gigantic cogs defends this route. Batteries turn along with the gear movement to aim at targets. Unless this base is destroyed, there is no way forward. Quote2.png
— Vs. C.O.G.S. Special Page

C.O.G.S. is a boss that first appeared in Kirby: Planet Robobot. It appears in Stage 2 of Resolution Road and Stage 4 of Gigabyte Grounds and is fought exclusively with the Robobot Armor's Jet Mode.

True to its name, C.O.G.S. is little more than a series of cogs and gears on the side of a wall. Attached to these cogs are a series of turrets that will attempt to fire missiles, plasma shots and laser blasts at Kirby. To defeat C.O.G.S., Kirby must simply fire at the individual gears until they are destroyed, rendering C.O.G.S. inoperable piece-by-piece.

Game appearances[edit]

Kirby: Planet Robobot[edit]

C.O.G.S. with most of its gears destroyed.

C.O.G.S. first appears at the end of Stage 2 of Resolution Road, as the last obstacle that Kirby must overcome using the Jet Mode. Fighting and defeating it is simply a matter of destroying every gear on the boss with sustained fire. Firing at gears that are already destroyed will not damage it further.

There is another variety of C.O.G.S., which appears in Stage 4 of Gigabyte Grounds. Once destroyed, it sheds its outer casing and becomes Core Kabula, which Kirby must fight again to defeat.

C.O.G.S. is encountered again in The Arena and The True Arena, being paired with Core Kabula in the latter.


  • The name C.O.G.S. in addition to being an accurate descriptor for the boss, may also be a pun on the financial accounting acronym, standing for "Cost Of Goods Sold". This would be in keeping with it being built by the Haltmann Works Company.

Names in other languages[edit]

Language Name Meaning
French Bases engrenages Gear bases
German N-Goor-Basis N Goor basis
Korean 아륜 기지
Aryun Giji
Wheel Base
Spanish Base MK MK Base