In extremely limited unreleased numbers, like lasercycles Jazz and Soundwave. Drag Strip, Wildrider, Dead End carded.
There was a very small amount of G2 Breakdowns in circulation outside of Botcon too. Either sold at the 1995 Florida Extravaganza Collectibles Show or they just went to Hasbro employees.
I don't think this version is the Botcon one, because it doesn't have a botcon sticker completely covering the other stunticons. Considering 204 of the 300 G2 Breakdowns produced were sold at Botcon, this one is the rarer version.