From the back of the North American Sega Master System edition
"Twice the action. Twice the risk. One incredible combination.
Hang On is the 3-D motorcycle race game that's taken the arcades by storm. Race through grasslands, seasides, valleys, nighttime city scapes and, of course, motorcycle racecourses.
This game is so fast it even gives you special racing techniques like Hang-on and Countersteering for taking the corners.
Astro Warrior pits you against the enemy's fleet of superpowered spaceships. And ultimately, the invincible Master Ship.
In this treacherous black universe you can only count on yourself. To shoot fast. To shoot straight. If you do - you get more power. More weapons. To beat the villains. To beat the odds.
If you don't - the odds beat you."