|This article is about the most common type of Geg, which tries to crush the player with its impervious metal mouthpiece. For other uses, see Geg (disambiguation).|
|“||In the desert, you're going to get trapped in a chamber with some egg-like creatures. They're called Gegs. And one Geg has a pull ring inside its body.”|
|— Daroach • Kirby Mass Attack|
Mech Geg is a white egg with glaring purple eyes and a slitted, metal mouth guard. It flies using a pair of insect-like wings.
Due to events that occur in Green Grounds, Big Birdee and her family harbor a grudge against the Kirbys. This changes in Stage 11 of Sandy Canyon when the youngest members of the family, the Wee Birdees, are kidnapped by the Gegs. Big Birdee is grief-stricken by this. The Kirbys break the Wee Birdees out of a cage, defeat their Geg captors, and return them to their mother. This ends the Birdee family's dispute with the heroes.
In this stage, if enough Kirbys are KO'd that a Wee Birdee is left unattended, the player receives an immediate Game Over.
As an enemy
Mech Geg appears in Stages 6, 8, 9, and 11 of Sandy Canyon; Stage 10 of Dedede Resort; and Stage 7 of Volcano Valley. It is the most common type of Geg. It flies upside-down at the top of the screen, moving back and forth. When it has chosen a Kirby target, it stops, flips right side up, and strikes the ground with its mouth guard. Any Kirbys squashed between it and the ground are KO'd.
The player must flick the Kirbys into Mech Geg to damage it; the enemy cracks more and more as its health is depleted. Only its shell is vulnerable, so it is easiest to hurt when it is flying upside-down. Any Kirbys that hit the enemy's mouth guard are deflected. Mech Geg drops several fruits when defeated.
Some Mech Gegs in Dedede Resort hide behind large cards. When the Kirbys grab the card in hopes of collecting a medal, they reveal the enemy, who begins attacking.
Mech Geg appears as a collectible keychain.
Mech Geg's name is an anagram of the word egg, referencing its egg-like appearance. The mech part of its name is derived from the word mechanical, referencing is metal component.