Predating the official Lego Optimus Prime, Kre-O, and even BTR (Built to Rule!), Mega Bloks took a crack at buildable transforming robots! After over 20 years, here are 10 that I remember
Mega Bloks Transforming Blok Bots Cyborgs vs Mutroids Beastor Vintage 2003 | Vinted
Amazon.com: Transforming Blok Bots Scuba Team 430 Pieces : Toys & Games
Mega Bloks Blok Bots Spy #9337 Transforming Blok Bots New Sealed 165 Pcs.Ages 7+ | eBay