An Entry in the GP2X Coding Comp, heres the details:
Name: Vanguard Wars
Author: Daniel "Imerion" Eriksson
Description: Vanguard Wars is a fast-paced arcadegame in which you must control your spaceship and defeat numerous enemies and bosses. There are three game modes : Endless, Arcade and Survival, four levels, four bosses and five weapons. Vanguard Wars has colorfull backgrounds and loads of explosions as well as suiting music.
Downloads and screenshots via comments