Marvel Ultimate Alliance 2/Reactors
- Enter Tinkerer's Lab
- Engage Capacitor Locks
- Defeat Cyborg Prototypes (optional)
- Destroy Reactor Shielding
- Break Tinkerer's Tank Bot
- Strike Upgrade: At the end of the first hall.
- Dossier: Wizard — beside the stairs down into the first lab.
- Dossier: Scorcher — on the other side of the stairs from the previous Dossier.
- Focus Upgrade: Side room west of the second capacitor.
- Gamma Regulator: Side room east of the third capacitor.
- Boost: Inferno I — bottom of the second flight of circular stairs.
- Dossier: Latverian Cyborg — in the lab with the last two cyborgs, opposite the door you come in.
- Audio Log: Von Bardas and Tinkerer — in the lab with the last two cyborgs, in between some equipment in the southeast corner of the room.
- Boost: Precision I - complete optional objective
- Boost: Focused I — beat Tinkerer's tank bot.
- Boost: Focused IV — beat Tinkerer's tank bot. (Legendary)
 Capacitors and cyborgs
Head straight down the first hallway and pick up a Strike Upgrade; then, backtrack a little bit and go through the door on your right. Keep going through the next little room and enter a lab where Tinkerer is modifying soldiers and building robots. They will, of course, attack you. Some of these guys fire missiles so be ready to block or dodge. On either side of the stairs you came down is a Dossier.
Leave this lab and go down a circular staircase to another lab. Destroy the enemies and also smash the large piece of machinery in the center of the room until two arms come clanging down on either side of it. This is the first of three capacitors you must "engage" prior to finishing out this mission. While you're fighting, you will probably break open a tank full of green fluid and a cyborg. Defeat the cyborg to kick off an optional quest to defeat eight of these guys.
Head into the next room to the west, kill the mobs and engage the capacitor. The Nav system will now point you to the south; before going that way, go into a side room to the west. There are two more cyborgs in here to break out and defeat and you can pick up a Focus Upgrade.
Go back to the second capacitor and go through the door to the south. Defeat the enemies, engage the third capacitor and break out the fourth cyborg and beat him up. There's a side room to the east that has several robots, two more cyborgs and a Gamma Regulator. Go back to the previous room and exit by the south door and go down another flight of circular stairs.
In the small room at the bottom of the stairs you can pick up a Health Token and a Boost. Activate the door to the west and enter another lab. You can kill the last two cyborgs here for the optional mission. Pick up a Dossier next to Tinkerer's face opposite the door you come in. In the southeast corner of the room, in between some heavy equipment, is an Audio Log. Exit by the door in the southwest corner of the room and be prepared to fight a large mob of cyborgs with rocket launchers.
 Destroy the reactor
When the cyborgs are all gone, a door to the west opens and you can enter Tinkerer's garage. There are a metric ton of robots in here, all lined up nicely waiting for you. To your left as you enter you can see the reactor. To either side is a large box, with electricity connecting it to the reactor. Your primary responsibility is to pull each of those boxes forward to disconnect it from the reactor; and, then, hit the reactor to destroy its shielding.
But, first, you have to deal with the robots. In addition to the couple dozen in the garage at the start, they will swarm for a while. Try to use radial attacks and save your Fusion Stars as this is not the main boss battle. That's still to come and you'll want Fusion Stars for dealing with the boss. When the robots have been dealt with, Black Widow will tell you to destroy the reactor shielding and that's when you pull the boxes and blast the reactor.
 Tinkerer's robot
This, of course, ticks off Tinkerer, so he unleashes a huge robot on you. The robot can only be taken down by first destroying the shielding on its legs. Attack its legs with everything you've got, including Targeted Fusions. Try to stay out of range of its various attacks – there will also be regular robots swarming you.
The bot's main attacks include a stomp with the left front leg, a radial burst of fire, a laser beam with a long reach and missiles. The stomp and fire burst can be avoiding just by staying out of range. The missiles have to be blocked as they are homing missiles and can't just be dodged. The laser beam has a small arc and is fired from the top of the bot, so you can either get under it, fly over it, or get behind the bot and avoid it.
Fortunately, the arena is large and the bot is slow so you can always get far away from it to deal with swarms of small robots, recoup Stamina and get ready to go back into the fracas. Destroying the shielding on the bot's legs also destroys the bot and awards you a Boost.