Use Silver Lego Blowup at the door at the back (e.g. Ironman). Then, Telekinesis (e.g. Doctor Strange) to open the door. Finally, use Shield from Captain America to extinguish the fire. Put the pieces together
Destroy everything inside the big room. In the center, a Teleportation Pad is revealed. Use it (e.g. Thor) and smash the big yellow box inside the small room.
Character in Peril (Stan Lee)
Above the fish tank. Fly up and target the drones hovering over Stan Lee.
Pick someone with Stealth (e.g. Black Widow) to sneak passed the camera. The Token is inside the room.
Destroy 5 Lockjaw (dog) statues in the area.
1 - in the center of the room at the back
2 - inside the teleportation room (Minikit 2)
3 - Close to Stan Lee
4 - inside the stealth-token room
5 - inside the tiles room
Inside the tiles room, there is a Fuse Box. Access it to get the Minikit (e.g. Ms. Marvel)
Inside the laser room, top right, fly up high. It's hanging in the air.
Continue to the boss fight. There is a vent at the front left. Use Vent Travel (e.g. Ms. Marvel) to go through. On the other side, destroy everything. Then use Telekinesis (e.g. Doctor Strange) to build a chicken. It will lay a silver egg. Destroy it with Silver Lego Blowup (e.g. Ironman)
Inside the big room again, destroy everything in front. There is a Sphere pad. Use it (e.g. Ms. Marvel). The hatch will open and you can get the Minikit.
There is a red button at the far right of the room. Push it. It will show you the order you have to step on the buttons on the floor. Do this 3 times to get the Minikit.
At the left, there is a Minikit inside a force field high up. Use Single Rope Pull (e.g. Ms. Marvel) to open the panel. Then, Electricity on the pad. Fly up to get it.
In the story, you will be lifted up into the air and you have to fly through a lasergrid. The Minikit is hovering there. Use someone big (e.g. Lockjaw) to pick it up. Much easier...