Sonic 1 & Knuckles (Blue Sphere)

Sonic 1 & Knuckles (Blue Sphere)
Are you a fan of the Blue Sphere Special Stage in Sonic 3 and Sonic and Knuckles? If so, you are going to love this game! Over 100 million unique levels have been generated here for your entertainment. Collect all of the Blue Spheres to complete the level, and pick up bonus Rings along the way. Be careful to avoid those Red Spheres however, as touching one of these will end the level. Normally you will progress to the next level after completing one, but if you collect all of the Rings and Blue Spheres in any stage you will progress a whole 10 levels. There is also a unique code for each stage, so if you come across a particularly fiendish one, try challenging your friends to complete it!

Key Features

1. This game was originally accessible by plugging the original Sonic the Hedgehog cartridge into the Sonic & Knuckles Backwards Compatibility slot. You could also access individual levels by plugging in other Mega Drive/Genesis game cartridges.
2. There are a total of 134,217,728 levels in this game. Should keep you busy for a while...

Can be played with: