- Console
- Sega Genesis / Mega Drive
- Released
- 1994
- Developer
- Sonic Team
- Publisher
- Sega Enterprises
- Genre
- Platform
- Players
- —
Sonic & Knuckles / Sonic the Hedgehog 2
Sonic & Knuckles features "lock-on technology" that allows players to open the hatch on the cartridge and insert a second cartridge. When Sonic 2 is inserted, Knuckles the Echidna in Sonic the Hedgehog 2 is unlocked, wherein the player can play through Sonic 2 as Knuckles with all of his abilities.
Average price · NTSC (North America)
$84.14
Last sold
$81.00
Sep 9, 2026
12-month change
+0.0%
NTSC exclusive — never released in PAL territories
● Live market price — last checked Sep 11, 2026 by the RetroPrice bot.
Price history
Monthly complete in box average in the NTSC (North America) market, last 12 months.