More or less a spam stage tbh. The startoff is extremely simple, and you can solo it with a few Pizzas and a bunch of Erasers. Plus, the enemies give you plenty of money to work with.
Hit the base with Idi so you can guarantee one hit on the Puffington, and then another with the power of slow beam. This already eliminates one of the major threats of the stage, and makes the rest a bit easier. From here, it's pretty much just spamming everything except Bahamut and Idi until opportune moments. These include when Ragin Gory is pushing a bit too much (use Bahamut), or when you have an opening to attack Loris or Puffington (use Idi). You get a ton of money from the black enemies, so there's no need to worry about running out. When the enemies get a bit closer to the base, focus a bit on timing them so they don't get slowed by Croakley since it's easier to control at this point.
Manic Eraser 44
Eraser 20+60
Boulder 40
Can Can 40 (Bounty, Move Speed 10)
Pizza 33+7 (Wave 10)
Courier 40
Housewife 37+3 (Savage Blow 10)
Doron 30
Idi 40
Bahamut 30