Truxton is a standard vertical scrolling shooter arcade game. It was ported to Genesis in 1989 and Turbografx-16 in 1992.
Back cover text says:
Power on! All systems go!! Takeoff! Meet the alien attack head-on in your Super Fighter! Before the Gidans overrun your planet, destroy them in an explosive scramble in space! You are the one pilot alive with the guts to do it!
The Gidans have blown up your planet's cargo barge and are on their way to Borogo with a swarm of flying fortresses - asteroids loaded with tanks, guns, and explosives for an all-points takeover.
Attack them face to face in your Super Fighter, the most powerful assault ship in the universe. Blast them to kingdom come with Power Shots. Fire the incredible Truxton Beam to disintegrate their speeding onslaught.
And when there's no escape through their force fields, surprise them with the devastating Rainbow Circle Shot! Take on the Gidans in 5 separate battles of space carnage! You CAN save the planet!