Fridge Brilliance
- Why is there an Oxygen Meter in the Boston Aquarium, the toxic area in the Arizona Mining Complex and the underwater area in Doom's Castle stages but not in the Asteroid Belt, Magus' Spacecraft or Thanos' Palace stages?. Because the former cases were all surprises prepared by the villains at the moment the heroes arrived. For the latter cases however they are fully aware of the lack of oxygen, Iron Man probably adapted his armor for space and prepared his teammates for the same.
