Semifinals (Easy) is the second stage in Tag Arena: Rookie.
Cat Deploy Limit: 2
Jackie Peng is spawned a few seconds after the battle begins.
Shortly after, Sir Seal spawns. Four of each will spawn in total.
After each one dies, their spawning alternates (Jackie Peng, Sir Seal, Jackie Peng, Sir Seal, etc.). However, if you take too long to kill one, Jackie Peng will spawn.
After 15 minutes, Assassin Bear will spawn.
Spam Giraffe Cats and you should be fine.