The evil Iridion Empire is back and is now trying to take over the colonized systems. Peace and freedom are being threatened once again. Gamers must stop them before they destroy the outposts and eventually attack the last remaining planet of human beings, Earth.

Features :
3 modes of play : Story mode, Arcade mode, Challenge mode
3 difficulty settings (easy, normal and hard difficulty)
Over 200 different enemies
32 bosses
GAX soundtrack utilizing the GAX sound engine (superb sound quality for the GBA)

Extras :
Charging beam
Smartbombs
Satellites
6 extra weapons
Each 3 power levels

Game size :
15 levels
15 special missions
Ingame tutorial
Automatic battery save