Note: It is strongly suggested you play at the lowest quality to reduce lag
The Earth is threatened by a hostile alien force. They have already conquered another planet, anhialating all who stood against them. Now, their attention has turned to Earth. As part of the immortals, Earth's only fleet and last line of defense against these hostile forces, you must guide your ship through waves of enemy ships, to destroy their leader, the Robot Lord.
Arrow keys----move the ship. Spacebar shoots the weapon you have. "B" initiates hyperdrive. Shooting and being in hyperdrive drain the ship's energy, so watch out. Press "P" anytime to pause.
When you make it to the upgrade shop, speed is your best friend on the Final boss, so stock up wisely.
The more points you have, the more you can spend on upgrades.
While it is possible to beat the Robot Lord, few will survive the trip to meet him, let alone the confrontation itself. Goodluck, brave pilots of Earth. Good luck.