This is a cardboard Sonic 2 promo set. It's in 5 pieces, and was meant to be assembled by the store. The main part is the classic "2" with Sonic & Tails. The other items probably went at its edges or slightly in front of it. These include the "Sonic 2" shaped title card, shaped Genesis logo and the small diamond shape which says "Twice the Action". The long blue bar (mostly hidden) reads "2fast... 2cool... 2day!" So this sign could likely be posted only once the game was released.

A older and complex display, this is a great item to set up in the home for a classic feel.