Sanitary Corps is the fourth stage in Go Go Graduates!.
- Pigge spawns every 20~23.3 seconds throughout the battle.
- St. Pigge the 2nd and Pigge Victorious spawn a few seconds in.
- Pigge Victorious respawns 16.7~23.3 seconds later. Soon after, Bang-Bang spawns.
- After 93.3 seconds, more Pigges spawn, followed by St. Pigge the 2nd, Pigge Victorious and Bang-Bang.
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