Sonic & Knuckles Collection (Game) - Giant Bomb

A Windows PC release which includes Sonic the Hedgehog 3 and Sonic & Knuckles, as well as the ability to play the combined "locked-on" version of the two together, and "Get Blue Spheres!" as a menu option.

Sonic the Hedgehog (Video Game) - TV Tropes

Sonic & Knuckles, Sonic Wiki Zone

Sonic the Hedgehog Sticker Bomb Plush Large Plush 12 New Licensed SEGA

Do you remember your first Sonic game? Mine was this one. : r/SonicTheHedgehog

Sonic Mania - Wikipedia

Sonic & Knuckles Collection Box Shot for PC - GameFAQs

Sonic & Knuckles PC Video Games for sale

Sonic Mega Collection (Game) - Giant Bomb

Sonic & Knuckles Collection: Back when Sega published PC games. – You Found a Secret Area!

Game Review: Sonic 3 & Knuckles (MD)

Sonic Advance Trilogy (Video Game) - TV Tropes