G-CLONE resembles an old computer with a big monitor as its head. The other part of its body looks like scrap metal and a capsule in which Curly sleeps during the battle.
G-CLONE's battle is initiated by interacting with the capsule Curly is sleeping in. After a short cutscene ("?!"), the battle initiates.
G-CLONE's screen opens and white projectiles fire from the top just before it closes. A Curly Clone drops from the ceiling and joins the one already in the area before the battle started. Occasionally, many Curly Clones drop in and run around the enclosed area to ram into Quote. They grab onto and throw him if he gets too close.
G-Clone's green screen is only damageable when it is open. When it turns dull, it cannot be damaged. The projectiles it fires deal 2 damage.
The G-CLONE continues to create additional Curly Clones the longer the fight goes on. It also fires white orbs similar to the ones in the second fight with Balrog. Periodically, it closes its screen when a certain damage threshold is bypassed and spawns more clones.
When G-CLONE is destroyed, Curly wakes from her sleep and exits the machine. Dead Curly Clones can be seen around Quote and her as she asks if he was having a party, oblivious to the actual situation.
- In the 3DS eShop port of Cave Story, after G-CLONE is defeated, a bug in text says, " Deafeated G-CLONE!8"
|General||Wind Fortress • G-CLONE|
|Enemies||Power Critter • Critter • Gaudi • Curly Clones|
|Enemies and bosses|
|Enemies||Critter • Bat • Door • Egg Fish • Pignon • Gravekeeper • Beetle • Behemoth • Basu • Basil • Time Bomb • Dragon Zombie • Power Critter • Jelly • Kurara • Press • Mannan • Frog • Petit • Sandcroc • Skullhead • Skullstep • Skeleton • Crow • Armadillo • Polish • Flowercub • Gaudi • Armor • Gaudi Egg • Fire Whirl • Buyobuyo Base • Buyobuyo • Fuzz • Fuzz Core • Porcupine Fish • Hoppy • Night Ghost • Midorin • Droll • Gunfish • Orangebell • Stumpy • Ravil • Bute • Mesa • Rolling • Delete • Green Devil • Curly Clone|
|Bosses||Balrog • Igor • Balfrog • Omega • Rabid Toroko • Puu Black • Monster X • Core • Ironhead • Sisters • Ma Pignon • Red Ogre • Misery • Doctor • Muscle Doctor • Undead Core (Possessed Sue • Possessed Misery) • Heavy Press • Ballos • G-CLONE|