Fallen Priest is the fourth stage in Sports Night.
After 120 seconds, the last Dark Otter and Shadow Boxer K will spawn alongside a Zory.
This is a low-level cheese strategy, based on Neku Neko's video. You basically need to finish off the enemy base before Bun Bun Black appears.
A winning lineup is:
First, send out Manic Macho Legs, Crazed Macho Cat and Bombercat. (Order doesn't matter that much, but if it didn't work, you can try it again with a different order.) Do not level up your Worker Cat
Keep on sending Crazed Macho Cats. Send out another Bombercat when ready, but not a third one. Bombercat and M. Macho Legs are a very effective combination in dealing with the Doge Darks.
When your Legs/Bombercats progress about halfway or more, send a C. Giraffe Cat. A level 15 C. Giraffe is "OHKB" (one-hit knockbacked), but you can send it earlier if yours is stronger.
Now when you have enough money, send A. Bahamut. After that, you don't have to do anything if your cats are strong enough.
Note that this strategy is pretty time-sensitive. During the first attempt, the enemy base had about 5k health left so it can work with more precise timing.