These are product advertisements placed in various media to promote the release of the Game Gear and Master System version of Sonic the Hedgehog 2.
This advertisement shows a number of products for sale at Software, etc. This includes the 8-bit version of Sonic the Hedgehog 2.
This clip shows the Sega Game Gear sports pack which includes Majors Pro Baseball and Sonic 2.
This clip shows a Game Gear with Sonic 2 included for sale.
This clip shows two seperate packages of the Game Gear console. Both include Sonic 2.