Bart had his strength increased 12-fold by Professor Silas X. Cragg. Man-Brute turns to crime to get money for his poor son, with whom he plans to move to the mountains of Arizona. Unfortunately, countless people are hurt in the process and he ends up battling Captain America and losing.
Later, he changes his name to Blockbuster and runs afoul of Omega the Unknown. Overcoming Omega in their second battle, Blockbuster is about to snap the hero's neck when the villain is vaporized by the second Foolkiller, Greg Salinger.