Gutter Lord is the second stage in Coup de Chat.
- Oldhorn, One Horn and Metal One Horn are all spawned in quick succession at the start of the battle.
- One Horn respawns once after 23.3 seconds700f.
- Cyberhorn spawns after 30 seconds900f, followed closely by another Metal One Horn.
Focus on cat combos for attack and use the other slots for the best killer for each type, like Elemental Duelist, Chill Cat, C.Moneko and Slapstick; it may be hard to deal with Oldhorn, but after he dies the stage becomes a cakewalk.
Also use Cat Jobs to protect your units.
Line up : Modern Cat, Eraser Cat, Rodeo Cat (Curse immune), Slapstick Cats, Catyphoon, Delinquent Cat, iCat, Amaterasu, Meow-sketeer, Ultimate Catman.
Rich cat helps. Spam Modern Cat and Eraser Cat when level starts to get Metal Horn to catch up with Old Horn. Spam Catyphoon and other cats on first row. Hope RNG on your side as Catyphoon will take two hits to kill Metal Horn. Once Metal Horn is gone you should have enough (or nearly enough) to push out Catman. Spamming Delinquent Cat and iCat at this point to take care of Cyberhorn. Push out Ama and Meow-sketeer when possible.
This will probably work too if you replace Ama/ Meow-sketeer with a red/ general damage dealer, and Catman with a relic damage dealer.