Released in 1992, the 4-in-1 version of Sega Classics was sold with the Sega CDX, and retailed at $59.99. In some instances it was also bundled with the Sega CD version of Sherlock Holmes: Consulting Detective and with the Mega-CD alone.

Games
Columns
Golden Axe
The Revenge of Shinobi
Streets of Rage

The version of Revenge of Shinobi included in this collection is software revision 1.02 including only the Spider-Man boss-fight, with Godzilla and Batman replaced with substitute enemies.

Strangely, Golden Axe is the only game in the collection that has external CD audio (Aside from Columns but only the Title Screen track uses CD audio) and it oddly enough uses the arcade version's soundtrack. However, it is heavily based on the Genesis port with the voices changed to higher quality voices. (None of them - besides the townspeople screaming in Turtle Village - are from the Genesis or Arcade version.)

The Streets of Rage Is generally the same from the Genesis version aside from the fact the voices are CD quality enhanced.
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Sega Classics Arcade Collection 5-in-1

Again sold only in a pack-in with the Sega Mega-CD, the collection added Super Monaco GP but was otherwise identical, including the version of Revenge of Shinobi included. In Europe the game was re-titled Sega Classics Arcade Collection Limited Edition.

Games:
Columns
Golden Axe
Revenge of Shinobi
Streets of Rage
Super Monaco GP