Defeat Cassiopeia and Save Clank is a mission in A Crack in Time, taking place in the Valkyrie Citadel on planet Vapedia. Ratchet finally managed to reach Cassiopeia who revealed she was holding Clank captive before attempting to kill him.
Completing the mission will unlock the bronze trophy Just Like Old Times.
Walkthrough[]
Cassiopeia will stay on her own hover vehicle during the entirety of the fight, so ground-based attacks are useless. At first, she will fire slow rockets that release a lingering toxic gas on impact. Their area of effect is rather low, and there is plenty of space to get around as well. She will also fly above one of the available platforms and saturate it with bombs entirely. After losing 25% health, she will temporarily retreat and call in a pair of valkyries which must be defeated first.
Upon her return, she will also use her vehicle's chaingun, although she is not very accurate with it. At 50% health left, she will summon four valkyries, which is also the last time she will do so. She will not gain any other methods of attacking you either. Lastly, during the fight, it is possible her vehicle will temporarily malfunction, giving you free reign to hit her without needing to dodge any incoming attacks.
Most of your weapons will be usable during the fight. The Groovitron Glove and Mag-Net Launcher are useful to temporarily stall her, while the best-ranged weapons are the Negotiator, Buzz Blades, Constructo Shotgun, Spiral of Death, and Plasma Striker.
After her defeat, you will have reunited with Clank, who allows you to use his Time Bombs in combat. Return to the Bernilius Sector to "travel to the Nefarious Space Station", which requires 24 Zoni to have been collected as you need the Polarity Plating upgrade to pass through the Station's barrier.