Regular Event Stages · 8 stages
When it opens
- Apr 1–May 1, all day
| # | Stage | Boss | Enemies | Rewards | Base HP |
|---|---|---|---|---|---|
| 1 | Cat School Musical |  Boss Gory |     |  100% | 10,000 |
| 2 | I can feel it |  Boss Kang Roo |    | 2% | 20,000 |
| 3 | The Catbook |  Boss Le'boin 400% |     | 3% | 40,000 |
| 4 | P.S Cat Loves You |  Boss Teacher A |   | 4% | 80,000 |
| 5 | 100 Cat Dates | Boss Teacher A 150% |   | 5% | 160,000 |
| 6 | Lament | Boss Teacher A 200% |    | 6% | 100,000 |
| 7 | I L U | Boss Those Guys 800% |     | 7% | 150,000 |
| 8 | Let's Start Over | Boss Teacher A 350% |   | 10% | 160,000 |