Cartridge only. Cartridge and/or label will show some wear, including discoloration, tearing, writing, or other cosmetic issues. Guaranteed functional or replacement.
From the Manufacturer
You ain't got nothing against a superhero hedgehog. Step into the shoes of one of the most popular video game characters of all time in Sonic the Hedgehog. Blaze through each level, using spin attacks and bursts of speed to get where you're going. Use loops to defy gravity, and then dash to safety in Sonic's power sneakers. You'll traverse hot lava, waterfalls, beautiful mountaintops, and zoom through a magical city along your journey to rescue your friends from the clutches of evil. Full of rotating mazes, unprecedented obstacles, and deadly enemies, Sonic the Hedgehog is a long-standing classic for the Genesis.