Marvel Ultimate Alliance 2
58 Achievements
1,250
Undefeated Heroes
Defeated 12 mission bosses on Super Heroic or Legendary Difficulty without revival or map reload.
30
How to unlock the Undefeated Heroes achievement in Marvel Ultimate Alliance 2 - Definitive Guide
For this you need to defeat 12 unique bosses without reviving or having all your characters die, you can't simply replay the same boss over and over. There are 13 total bosses in the game, so if you fail in this against Tinkerer for instance but defeat all the other bosses, it will still unlock.
If one of your partners dies during a section with one of the below bosses, do not revive them and if you all die, don't even bother retrying from a checkpoint, just back out and restart the whole section.
- Tinkerer aka Tank Bot (Prologue, Latveria Reactors)
- von Bardas (Act 1, NYC, All Hands on Deck)
- Titanium Man (Act 1, D.C., Hallowed Ground)
- Cable OR Bishop (Act 2, White Star Base)
- Goliath OR Yellowjacket (Act 2, Convoy Strike)
- Green Goblin AND Venom (Act 3, Off the Leash)
- Whirlwind, Diamondback, AND Moonstone (Act 3, Prison)
- Green Goblin AND Venom (Act 3, Wakanda)
- Nanite Nick Fury (Act 3, Showdown)
To see which bosses you have done this with, pause the game and go to Stats>Map and scroll through to all the maps with bosses. If it says "1 of 1" then you're good. I had an issue where the second instance of Green Goblin/Venom in Wakanda wouldn't register, but it was because I had never defeated the first instance on them without reviving earlier in the game. I went back in the simulator and did that, then both showed up as "1 of 1" for me. I got my final one from the Simulator console, so the achievement CAN be unlocked this way.
NOTE: If you have all the bosses done with no revival and do not get the achievement, finish the game and begin a new one. It should unlock when you defeat the Tinkerer in the prologue for the second time (but make sure you don't use a revive).
- Tinkerer aka Tank Bot (Prologue, Latveria Reactors)
- von Bardas (Act 1, NYC, All Hands on Deck)
- Titanium Man (Act 1, D.C., Hallowed Ground)
- Cable OR Bishop (Act 2, White Star Base)
- Goliath OR Yellowjacket (Act 2, Convoy Strike)
- Green Goblin AND Venom (Act 3, Off the Leash)
- Whirlwind, Diamondback AND Moonstone (Act 3, Hold the Line)
- Green Goblin AND Venom (Act 3, Panther's Lair)
- Nanite Nick Fury (Act 3, Towering Rage)