The Hulk went on a rampage on Marvel's The Age of Ultron, and Tony Stark called on his most powerful suite of armor (Veronica) for assistance. You can now don the Hulkbuster armor and battle the hulk on Marvel Contest of Champions.
The Hulkbuster armor is a heavy-duty exo-frame (an add-on to the Mk. XI Modular Armor) designed for maximum strength amplification at the cost of reduced versatility and mobility. Equipped with 7 arc reactors and 4 repulsor beams also it bears strength amplification blocks on its forearms. As its name suggests, it was specifically designed for hand-to-hand combat with the rampaging Hulk. The armor was rated with a lift (press) capacity of 170 tons. A flying quad legged dispenser pod is used to store extra armor to replace damaged armor. During its maiden run, the armor enabled Stark to hold his own in sustained physical combat with the Hulk. But the suit is easily malleable with enough force from a punch it can put huge dent.