- Gogogo Ghost
- Gogogo Giant
- Gogogo Gigas
- Gogogo Golem
- Gokibore
- Goldd, Wu-Lord of Dark World
- Golden Homunculus
- Golem Sentry
- Gonogo
- Googly-Eyes Drum Dragon
- Gorgonic Gargoyle
- Gorgonic Golem
- Gorgonic Guardian
- Gorlag
- Goyo Guardian
- Gradius
- Gradius' Option
- Granadora
- Grand Core
- Grand Spider
- Grand Tiki Elder
- Grandram
- Granel Attack
- Granel Attack 3