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Campaign 2 of 4

Lovers in a Dangerous Spacetime: Cetus walkthrough

The second campaign ends against Cetus, a mechanical worm that circles a ball of water.

  • 2 parts · 6 steps
  • 1 boss

Steps from 10 text guides, 3 videos to watch · checked Oct 19, 2026

0 of 2 done
Video: DaddyWinky on YouTube. Loads from youtube-nocookie.com only when you press play.

What each player can do here

P1 · Spacenaut 1
  • Run into a station to use it: a turret (aim and fire, short range), the engine (fly the ship), the shield (turn it around the hull), the Yamato cannon (a big hit, then a recharge) or the map.
  • Playing alone, you get an AI space-pet, a dog or a cat, to send to a station. It handles the guns and the shield well but cannot fly the engine.
P2 · Spacenaut 2
  • The same stations. Drop a gem into a station to change how it works; once the ship is upgraded, each station takes two gems.

If your skill levels differ: PSNProfiles' no-damage tip keeps one player on the shield for most of a level while the other flies and moves between the guns.Our suggestionGive the shield to the newer player and let the steadier one fly and call the swaps. How to split the roles

The four levels

Part 1 of 2. Free enough captured friends to reach the boss.

  1. BothEach campaign is four levels and a boss fight.
  2. BothIn a level, shoot open the cages and beat the enemies that come out to free captured friends. Five of the ten in a level open a heart-shaped portal onward.
  3. BothThe levels are Skybeach, The Four Queens, Big Seas and Undercaves; The Sea Monster is the fifth stage.

The Sea Monster (boss)

Part 2 of 2. Break its body, then finish the head.

  1. BothThe arena is a ball of water that you orbit, and Cetus swims around and through it.
  2. BothIts bites matter less than the mines it leaves along its path; getting knocked into them is what hurts.
  3. BothBreak the three exposed parts of its body first; then its head opens up for the last hits.

Boss

CetusThe second campaign boss

  1. Bites and mines: It rams the ship with its head and drops mines behind it as it swims.
  • A shield in the way stops its bites, and a Metal or Power+Metal engine clears its mines as you fly.
  • It can also raise a wave from the edge of the water that reaches you in orbit, and call in small enemies.
  • For the Underwater Expedition trophy, push the ship into the water in the middle and land the last hit while its head is under.

Extras and notes

  • All Creatures Great and Small asks for every friend in every level, 160 in all; you can replay single levels from the campaign menu to fill the gaps.
Sources (13)

Steps compiled from 10 text guides, checked Oct 19, 2026, and written in our own words. The videos are there to watch each part; they are not counted as sources for the steps. We did not play the game for this guide. A step marked “single source” rests on one guide so far.