Nitroblast was once a mining bot on the planet of Tallos 5. At one point in his life, Hero Factory scientists gave the local mining bots the ability to absorb fuel cells through augments in their fingers, which eliminated the need to constantly recharge. This modification was flawed, however, which eventually led to his corruption after gaining an addiction and left the planet with several other fuel-craving mining bots. He has committed theft of government property, assault, arson, and extortion, which has caused him to become wanted in half of the galaxy. The Fire Villains recently arrived at Tanker Station 22 and started to siphon all its fuel. The Alpha 1 Team was called in to stop them, but due to the villains increased power, they were outmatched. As the Heroes were surrounded, Surge drew their captives attention away by destroying fuel cells, which gave the Heroes the chance to escape. The Heroes later returned to the Refueling Station after being upgraded, and Nitroblast was the first to discover their arrival after Furno accidentally blasted a tower. The villains had the upper hand in battle until a Hero Pod containing Nex and Evo arrived. Nitroblast was startled after Furno attacked and nearly fell off a ledge, though he was saved and captured by Nex and Evo. When Voltix created a black hole using the Black Hole Orb Staff, Nitroblast and the other villains were able to break their security locks and escape. Nitroblast knocked past Rocka and Mark Surge and escaped into the black hole but was recaptured.
He, along with the rest of the Fire Villains, later returned to Equestria to take over the Crystal Empire and steal its energy to make him and his allies powerful to take over all of Equestria. To do this, he and his allies needed to find the Crystal Empire and steal the Crystal Heart
He appeared in an alternate timeline where he and the Fire Villains have