Gunstar Heroes

Brown extracted four Mystical Gems, the android's power source, and sealed them on one of the planet's moons, where it was guarded by the four Gunstar siblings.

However, years later, a dictator named Smash Daisaku kidnapped Gunstar Green and brainwashed him into telling him where the Mystical Gems were.

The dictator is now close to reactivating Golden Silver.

The Gunstar twins Red and Blue, guided by their sister Yellow, must find a way to stop Smash Daisaku - but they know that their older brother is on that way...

Gunstar Heroes is a fast-paced side-scrolling shooter.

Controlling either Red or Blue Gunstar, the player has access to four basic weapons: Force, rapid shot; Lightning, a straight shot that penetrates enemies; Chaser, a homing weapon; and Flame, a powerful close-ranged.

The player can combine two weapons to produce a new one, for a total of fourteen weapons.

It is also possible to use melee attacks and moves such as grabbing and tossing enemies, jumping, and sliding.

Gunstar Heroes for Sega Genesis is currently worth €120.14 loose, €220.87 complete in box, and €552.06 factory sealed. Prices are based on real sales and update regularly on Gamevaro.

Gunstar Heroes has a steady sales history on the tracked marketplaces, meaning it trades hands regularly and isn't considered particularly rare.

Loose means cartridge or disc only, CIB (complete in box) includes the original box and manual, and sealed means factory-sealed and never opened. For Gunstar Heroes, loose is €120.14 and CIB is €220.87 — CIB commands a premium because original boxes and manuals are fragile and often don't survive.

The PAL version of Gunstar Heroes is currently worth €120.14 loose, versus €96.24 for NTSC-U. Regional price differences usually come down to print run size and regional collector demand.