Punch Out Of Prison Chapter 3: The Sewers Walkthrough

Chapter 3: The Sewers is where Punch Out Of Prison stops being only an incremental dig and starts asking for combat readiness. Unlock it by escaping Chapter 2: The Yard once on any difficulty. Underground you still punch brick, sell at the crusher, and buy upgrades — but you also purchase Fight Gear, fight three rat mini-bosses, defeat The Rat King, claim the Sea Gate Key, and team up for the Great Clog escape out toward the open sea. This guide sequences those beats so your crew is not undergeared when the bosses spawn.

Unlock and prep checklist

1. Clear Chapter 2 at least once.
2. Enter Chapter 3: The Sewers on Easy or Normal for the first learn run.
3. Resume the familiar loop: punch underground walls, fill the backpack, sell at the Crusher, reinvest cash.
4. Before deep Rat Lair pushes, buy Fight Gear — Gloves, Health, and Armor. Treat these as required prep, not optional cosmetics.
5. Review helper options: Bandit the raccoon (and cubs), Chompers the croc, and Flicker the firefly medic.
6. Learn the new tools: Water Cannon on F for blasting large wall chunks, and Bubble Blaster for team power-ups.

If your shop from earlier chapters is weak, skim Upgrade Priority and top up hole size, backpack, and punch power before you force boss attempts.

All chapters Punch Out Of Prison including Sewers

Punch, crush, and gear up

The Sewers keep the rubble economy. Cash still buys dig speed and helpers. The new layer is Fight Gear:

• Gloves — improve your combat punch profile for rat fights.
• Health — survivability when mini-bosses and The Rat King connect.
• Armor — reduces how often a telegraphed hit sends you scrambling.

Buy Fight Gear as soon as the shop offers meaningful ranks. Digging into the Rat Lair undergeared wastes team time. Keep crusher trips efficient so gear purchases do not stall wall progress toward the lair entrance.

Rat Lair: three mini-bosses

The Rat Lair is a staged fight path. You face three rat mini-bosses before the king. Practical habits:

• Stay mobile. Mini-boss patterns punish players who stand still while punching.
• Watch for red telegraphed attack marks and dodge — the official Chapter 3 notes call this out explicitly.
• Assign roles in a crew: one or two players keep pressure on the active rat, others stabilize with medic help or clear nearby rubble for cash mid-fight if the lobby flow allows.
• Use Water Cannon (F) when a wall segment or clog blocks repositioning between rat arenas.
• Do not dump every gem into cosmetics mid-lair; keep focus on Fight Gear and dig upgrades until the key is secured.

Clear each mini-boss cleanly before pushing deeper. Resetting after a wipe is slower than spending two more crusher cycles on Health and Armor.

The Rat King and the Sea Gate Key

The Rat King is the chapter’s headline boss. Expect faster tells and harder hits than the mini-bosses, especially on Hard and Insane. Survive first, DPS second. Flicker’s medic support shines here — if your crew can afford the helper, bring it.

Defeat The Rat King to claim the Sea Gate Key. That key is the story hinge between the lair and the final sewer escape. Do not scatter after the kill animation; regroup for the Great Clog immediately while the lobby is still coordinated.

Great Clog team escape

With the Sea Gate Key, your crew clears the Great Clog — a cooperative wall and debris break that opens the path out to sea. This segment rewards Find Match groups:

• Stack Water Cannon blasts on the thickest clog sections.
• Bubble Blaster support keeps the whole team effective during the push.
• Keep at least one player on rubble → crusher duty if upgrades are still deciding the break speed.
• Communicate before the final breach so nobody is AFK at the crusher when the escape triggers.

Finishing the Great Clog completes the Chapter 3 escape, awards gems, and sets you up for Chapter 4: The Sea at Shipwreck Cove.

Sewers helpers and tools

Helper / tool	Role
Bandit the raccoon	Dig and disruption support with cub helpers
Chompers the croc	Heavy bite pressure for walls and fights
Flicker the firefly medic	Sustain during Rat Lair and Rat King
Water Cannon (F)	Blast a massive wall chunk in one go
Bubble Blaster	Team-wide power-up tool

Buy helpers when Fight Gear is not starving. A raccoon that digs while you are dead on the floor does not clear the king. Balance combat readiness and dig economy.

For class and glove context that pairs with sewer combat, check Players and the Tier List.

Difficulty: Hard and Insane in The Sewers

Escape Chapter 3 on Hard to unlock Insane for this chapter. Insane modifiers from the Chapter 3 notes: the escape wall is roughly twice as far, and rats attack faster and harder. Learn tells on Normal, secure the key route on Hard, then attempt Insane with a full Find Match crew, upgraded Fight Gear, and medic support.

After Chapter 3

1. Open Chapter 4: The Sea and form a five-player Find Match lobby when possible.
2. Bank gems toward gloves that help boat combat and sailing DPS.
3. Review How to Escape Fast if you are chasing Hall of Fame sewer times.
4. Glance at Updates after patches in case Rat King or clog rules change.

Common Sewers mistakes

• Skipping Fight Gear — dig stats alone will not carry Rat King.
• Ignoring telegraphs — red marks mean dodge, not greed another punch.
• Soloing the Great Clog on first try — bring a crew; the update frames it as a team escape.
• Forgetting Water Cannon — F-blast exists to delete huge wall chunks; use it.
• Pushing Insane without Hard practice — learn patterns before the double-distance modifier.

Clear the lair, take the Sea Gate Key, break the Great Clog, and sail your progress into Chapter 4. The Sewers are the combat exam between Yard digging and the Shipwreck Cove boat race.