Battle starts off with B.B.Bunny and Those guys rushing out of base. After some time, 3 Shy Boy's will spawn with Sir Seal following soon after. Hitting the base causes Teacher A., 3 St. Pigge the 2nd and a few Doge Dark's will spawn. Doge Dark's will start to spawn regularly with B.B. Bunny and Those guys.
The major threat of the level is the rush of Shy Boy at the start, after that the rest comes down to killing Teacher A. Use anti red cats and anti floating cats to deal with the shy boys, while using bulkier cats to deal with Teacher A. and the three St. Pigge