This is Part 2 of the Main Story Walkthrough . Finish Clearing Fisk first. The city is open, but this mission is a lab, not a crime spree.
The mission name in the log is My Other Other Job. Combat is off. Otto’s workshop is where the game teaches circuit boards and spectrographs — both come back later, so do not skip the interactables.
How the mission opens
After the Fisk Tower fight you spawn on a Manhattan rooftop with full swing controls. The yellow story marker is in Greenwich.
- Follow that marker. Side missions and street crimes can wait.
- Land on the Octavius Industries roof and use the access door (Triangle on PlayStation).
- The intro cutscene is Otto at the bench, working the prototype limb. Watch it. The lab layout only makes sense once you have seen the arm.
You stay in the suit for the swing in. Inside, Peter is at work. There are no guards and no fail states.
Inside the lab
Otto leaves you to calibrate the prosthetic. The room is a narrative sandbox. Walk it before you rush the main interact.
Circuit calibration
The arm sits on the centre desk. Interact to open the circuit board.
- Pull voltage blocks from the side tray, not from random empty sockets.
- Match ratings so a single path runs from the start node to the end node. Gaps and mixed voltages fail the check.
- If the board rejects the layout, clear it and rebuild from the source. The first board is a teaching puzzle; later labs reuse the same rules at a higher node count.
Complete the board to satisfy the mission’s main lab objective. You can still roam after it locks in.
Spectrograph and lore
Do this loop before you walk to the exit. Tokens and XP here are free, and the flavour text is the Otto–Norman funding fight in miniature.
- Microscope desk. Interact to unlock spectrograph puzzles. Align the chemical lines on the grid. A clean match pays Research Tokens and XP.
- Audio logs. Recorders on the benches. Otto is already losing the money war with Mayor Norman Osborn. Play them once.
- Whiteboard and blueprints. Wall sketches of the mechanical arm. They are the design pass that later missions assume you have seen.
Nothing in this room is missable forever, but it is cleaner to clear it now than to backtrack after the next story beat.
After the lab
When the calibration is done and you have walked the benches, use the exit doors. A short scene with Otto plays, then you are back on the Greenwich roof.
Yuri Watanabe radios in and unlocks Police Surveillance Towers. That is the hand-off into the open map: reveal districts, ping backpacks, and start unlocking suits. It is not a new story mission. It is the toolkit for everything that sits beside the main plot.
Do not treat tower-clearing as Part 3. If you are following this series, do a couple of nearby towers so the Greenwich grid is visible, then stop and wait for the next story marker.
Next: Demons Emerge . Previous: Clearing Fisk . Hub: Marvel’s Spider-Man (2018) .