Premium Friday is the first stage in Worker's Revolution.
Squire Rels will spawn, with a ~3-7-second interval between them, until 3 have been spawned. 2 Otta-smack-us also spawn, with a 10-second gap between them. When the enemy base is at 99% HP, the boss, CTO Seal, will spawn. Squire Rels will begin trickling in again, forever this time. However, the Otta-smack-us don't respawn. Rain D. and Owlbrow appear every 10 seconds. Rain D. stops spawning at the 4th one, while Owlbrow stops at the 6th.
Meatshielding is essential here. Since the boss doesn’t appear until you’ve hit the base, the meat shields buy you time to fill your wallet. From there, spam a combination of your best ranged attackers and anti-red cats. CTO Seal is a fast, relentless attacker who also freezes your front line, and with Rain D knocking them back, it doesn’t take long to get overwhelmed if you don’t have enough buffer. A recommended lineup would include 4-5 meatshields, Apple Cat, Hacker Cat, and fill the rest of the slots with fast attackers, long-range, and anti-red/traited cats like Ururun, Hatsune Miku, Bahamut, Orbital Platform Armageddon, and Cat Guild Heroes.