Metal Detection
Once you collect all ten Iron Man Crossover Coins, Cosmo and The Collector need Iron Man’s help in retrieving bio-scanners from the Mining Zone. After you speak with The Collector, follow the yellow objective markers and fly over to the Mining Zone. The first bio-scanner sits right next to the incinerators beside the entrance.
The second bio-scanner rests on a platform way below the first bio-scanner. Look for the yellow objective marker and fly down to the new platform. Walk over and collect your second scanner after you’re done sightseeing.
Rise straight up from the second bio-scanner and you’ll spy the third scanner. Look for it inside the circular tower with the open roof. You have to drop inside the tower to retrieve it. Then blast out of there to the opposite side of the Mining Zone and land on the marked catwalk to gain the fourth bio-scanner.
The last bio-scanner is stationed on the opposite side of the tower from the fourth bio-scanner. Fly around to the other side of the tower and you’ll see the bio-scanner on the back side of the catwalk. Fly down, scoop the bio-scanner up, and you complete the first Crossover Coin mission for The Collector.
Serve and Deflect
Return to The Collector for the second mission. This time his hologram appears at the door to the Mining Zone that you used for the “What’s Yours is Mine’s” side mission. The Collector wants you to defend two bio-scanners under attack in the Mining Zone.
There are two platforms to defend divided by a large expanse of open air. Luckily, as Iron Man, you can fly back and forth between these two platforms as the Sakaarans appear to attack the bio-scanners. Shoot over to the platform where the Sakaaran drop pods land first. Wipe out the first wave, which is just a warm-up act for the larger waves to follow.
Now zip over to the second platform and defend it with everything you’ve got—which is quite a lot with the Iron Man suit. Use Pulse Bolts to knock around Sakaarans, especially Flying Sakaarans, Air Attacks can trip up foes, and your melee combos can pound enemies too. Missile Barrage should only be triggered when you think you can hit more than a single opponent or really need to destroy an enemy in a hurry. You can even pick up Sakaarans and heave them over the edge to their doom.
Keep going back and forth until you finish off the last of the drop pods. When there are no more Sakaarans to assault the bio-scanners, the area is secure and you’re ready for your final Iron Man Crossover Coin mission.
Aggressor Assessor
Head back to the Central Operation Tower for the final side mission. The Collector needs bio-scans of each type of Sakaaran troop to better prepare Knowhere’s defenses. Take off into the Living Quarters Zone and battle each Sakaaran group until you’ve catalogued them all.
Engage the first group of Sakaaran Foot Soldiers. Armed with blasters, these enemies can strike at you from range, but they aren’t that durable in melee and your ranged attacks are much more destructive. Wipe them out quickly and move on to your second target.
The next foe is a bit more challenging: a Large Sakaaran. Don’t try to trade punches with this brute. Instead, stay at range and unload with your Pulse Bolts or Missile Barrage. If you have to get in close, strike from the side, dodge, then get behind him and back up while firing more ranged damage. After a lot of damage, the Large Sakaaran will crumple and collapse into Sparks.
Follow the yellow objective marker to a side balcony that holds the Scarabs. Pick them off one by one from range, then zoom out to the Docking Bay for your fourth battle against Sakaaran Gunners. Move quickly as you mix Pulse Bolts with punches and dismantle your foes before they can mount much of a counterattack.
Fly up to the upper levels of the Docking Bay for your last two battles. First, power through the sword-armed Foot Soldiers on their platform. Next, zip over to the last platform and land amidst the falling drop pods that release Flying Sakaarans. Hit as many as you can while they’re on the ground, then take to the air and trade ranged fire with them until the last of them plummets. With your final enemy bio-scan you complete The Collector’s objectives and wrap up Iron Man’s missions on Knowhere.