Iridion II

However, after hundreds of peaceful years, the Iridion Empire returned and attacked the human colonists with the intent of retaking their planets.

The player assumes control over the SHN-27 en route to save mankind from the Iridion once more.

In Story mode, the player follows a plot involving the defense fleet chasing the Iridion forces through five different solar systems in three areas each, although each area is symbolized as a planet (including asteroid belts and space travel zones).

The player can also use the Power-ups to empower firing strength or replenish the ship's armor.

The green power-ups also increases the shot count by adding two Satellites (or Options) that saddled alongside the ship.