Here's the Sega Mastery System 3, distributed by Tec Toy in just Brazil. It has some unique Sonic details too, there he is right on the console shell.

This console comes with Sonic 1 built right into it, so if you start it up with no cartridge inserted you can play Sonic 1. There is actually a modern version still sold by Tec Toy in Brazil called the Master System Evolution. It has no cartridge slot, but it does have something like 130 games pre-progamed in, and it has a picture of Sonic on it just like this one, only it's now modern Sonic.
A little bit of history: Sonic 1, 2, and Sonic Chaos were the first 3 Sonic games released for the Game Gear in the US. Sonic 1 was also released for the Master System in the US, but it was one of the last titles ever released for the system here, so a US copy is very rare and expensive. Also, the US version was just the same as the PAL version, but on the back it had a different UPC sticker. This makes it ripe for bootlegging, as there are plenty of copies of the PAL version of Sonic 1 out there real cheap. The PAL territories also saw the release of Sonic 2 and Sonic Chaos for the Master System. Two other Sonic Game Gear games that saw PAL releases were Sonic Spinball and Dr. Robotnik's Mean Bean Machine, which are both rare. Lastly, Sonic Blast was released for the Master System only in Brazil. This is probably the rarest of the Master System Sonic games, seen once on Ebay and the seller wanted $250.00. And, if you want a bootleg warning, Sonic Triple Trouble was ported to the Master System in Brazil by some enterprising individuals, but it was never an official release and exists only as a bootleg out there, which some people try to sell for big money as something rare or "unreleased".

You can see they had plenty of Sonic detal on all sides of the box too. He's on the front, has a screenshot on the side & is on the back with Tails too. (As well as Tom & Jerry and Bart Simpson)

All photos & info for system provided by & owned by MetaRidley001

Owned by MetaRidley001