This level begins with a Kory. Dark Emperor Nyandam will spawn momentarily. Soon, Kurosawah will join the party. After Kurosawah comes Galactic Overseer Nyandam. Berserkory will soon spawn as a big threat.
Luckily, they are the only enemies in the level.
At the start, keep sending out only Crazed Macho/Manic Mohawk, and then upgrade your wallet one level. Send out Jamiera, and then reach wallet level 4. Every time Jamiera dies, simply replace him with another. Keep doing this until the Kory is dead, then just send out Crazed Macho/Manic Mohawk until Berserkory appears. Once Berserkory kills them, send out Dancing Flasher, Fried Shrimp, and Island Cat. Hopefully the Dancing Flasher Cat will slow Berserkory, but if he doesn't it is fine. Once the Fried Shrimp Cat has weakened Berserkory, send out the Anti-red Uber (such as Divine Thundia or Tropical Kalisa), while sending out Island, Sword Master, Dark, Crazed Macho/Manic Mohawk, Crazed Wall, Mohawk, and Fried Shrimp Cats. Also send out Jamiera when you can. If your money starts to get low, prioritize sending out Fried Shrimp Cat and Island Cat. This should defeat Berserkory, and after that just spam Mohawk, Dark, Manic Mohawk/Crazed Macho, and Crazed Wall, sending out Jamiera and the Uber whenever you can, and the Nyandams should be pushed back until they are either dead or the base is destroyed.
This strategy will only work with Cat Machine's True Form! When the stage begins, let the enemies spawn. When the Kory gets close to your base, spawn Cat Machine. If you need more money, spam your meatshield until you get enough cash to spawn him. When the Kory dies, wait until the Emperors use their attack, then spawn Awakened Bahamut. He should do some huge damage before getting killed. Your Cat Machine will eventually die, when this happens, just spawn another, then your main hitters. Don't send Awakened Bahamut if his cooldown is recharged! Eventually, Berserkory will die. Now, spawn your hitters and Awakened Bahamut to kill the remaining Emperors and the base.