Andi
The heroine of Geometry Blaster and the only human character in the early Blaster games. She is brought from Earth to a planet called Dimensia to restore the planet's three-dimensionality.
- Ambiguously Brown: She has a vaguely brownish skin tone.
- But Now I Must Go: At the end of the game.
- Deadpan Snarker
- Ordinary High-School Student: She's an ordinary Earthling teenager caught up in a fantastical adventure on another planet.
- Token Human: Meta-example. She's the only human protagonist in the pre-1999 games.
- Totally Radical: Not as much as a lot of characters from The '90s, but she still uses a lot of vernacular.
- Trapped in Another World: Until the Dimension Machine is restored.
Trap E. Zoid
The other protagonist of Geometry Blaster. He looks like a bunch of purple triangles assembled into a vaguely humanoid shape.- Exposition Fairy: He gives descriptions of each location of the game.
- Last-Name Basis: Andi just calls him "Zoid."
- Punny Name: Subverted. He's made of triangles and later cones instead of trapezoids.
- Sesquipedalian Loquaciousness: He constantly uses big words, even when trying to be Totally Radical.
The Geometrons
The villains of Geometry Blaster. They did not like the fact that the planet they inhabit was three-dimensional and so rendered it 2-D by breaking the Dimension Machine and scattering the pieces.- Always Chaotic Evil
- Burning with Anger: At the end, they get so angry about their plan being thwarted that they burn down to ashes.
- Evil Sounds Deep
- I Don't Like the Sound of That Place: Their base is called the Pit of Despair.
- Large Ham
- Hurricane of Puns: Pretty much all of their spoken lines outside of the ending are geometry-related puns.
- Red and Black and Evil All Over: They are black with red eyes.
- Red Eyes, Take Warning: All that remains aside from ashes after they burn up.
- Self-Disposing Villain: See Burning with Anger above.
- Sinister Geometry