- Complete Monster: Red Skull continues his track record of being a heartless monster. Having a penchant for Mind Rape, Red Skull brainwashes Taskmaster into becoming his slave, then orders him to capture Captain America. When several of Skull's minions are captured, Skull remotely mind-wipes them, leaving their personalities nothing more than blank slates. After capturing Captain America, Skull repeats his brainwashing process on him, turning him against his teammate, Iron Man. Skull then reveals his master plan: Infect millions of innocent people with his mind-altering super soldier serum, which will turn them into mindless zombies whose only purpose will be to assist Red Skull in his plan to Take Over the World in the name of HYDRA.
- Contested Sequel: The animation reportedly shows slight improvement (at best) over Iron Man & Hulk: Heroes United, but the script reportedly still panders too hard to children.
- Harsher in Hindsight: Captain America getting brainwashed by the Red Skull to serve HYDRA became this after Nick Spencer's Captain America.
YMMV / Iron Man & Captain America: Heroes United