Sonic CD, released in 1993 for the Sega CD, is a classic platformer game that stands as one of Sonic the Hedgehog's most memorable adventures. It introduced players to time travel, allowing Sonic to navigate past, present, and future versions of each level. This game is renowned for its vibrant graphics, dynamic soundtrack, and the debut of characters like Amy Rose and Metal Sonic, adding depth to the Sonic universe. It merges the fast-paced action of Sonic games with innovative level design and time mechanics, making it a favorite among fans.