It is a relatively wide map, and it begins with a few buffed Gory Blacks and Shadow Boxer Ks followed by their Zombified counterparts (Zory and Zang Roo) along with Lord Gravey once the base is damaged. Every enemy in this stage is 200% magnified.
The burrowing Zombies may interrupt your rows of meatshields, so it is recommended to have heavy damage to be able to knock them back before they burrow/cause problems in your line of spam. The recommended strategy for this stage is using 3-4 meatshields, both Crazed Legs, Macho Legs, both Crazed Dragon and Dragon Cat, and possibly Ururun Cat. Build up a large ranged stack against the opening Black enemies, then take out Gravey with the enormous ranged firepower. When Gravey respawns, he will be much weaker and easier to take out due to the amount of support you should have already taken out.