Space is the Place (Insane) is the Continuation Stage in Techneurosis, it can be accessed after beating Nuts 'n' Bolts (Insane). When completed for the first time, it will give an Epic Catfruit. Any further successful clears will yield Cat CPUs.
Cosmic Cyclone, Galactic Overseer Nyandam, Imperator Sael and Kroxo will spawn when the enemy base is damaged. 2 more Imperator Saels will spawn over the next few minutes, and Kroxo will continue to spawn every 10~20 seconds until 12 Kroxos have spawned.
The main threat is the Cosmic Cyclone, so bring Castaway Cat and optionally Psychocat in order to keep it frozen/slowed, and be careful not to knock it back into Galactic Overseer Nyandam's range. Make sure to bring a heavy hitter and at least one cheap attacker in order to deal with the Imperator Saels and Kroxos.
Not much to it, just spam Legs, and Seafarer and Necro-Dancer Cat to permafreeze Cosmic Cyclone. It might take a while because of Galactic Overseer Nyandam, but it'll be fine. Easy win.