Pilot your spaceship, shooting enemy spacecraft and ground targets. Grab the pulsator capsules for extra fire power.
Pulsator capsules and fire power will automatically be increased after a period of time. So, do not hesistate use the bomb if you are in a dangerous condition. Always choose the thunder cannon as this is the most powerful weapon among all others. Try to position your ship to the right screen since enemy craft always appear on this side.
The following are the button configurations for the different Pulsator Capsules:
Fire: Thunder + Homing
Fire: Wide Shot + Missile
Fire: Spraygun + Synch-Fire