Collaboration Stages · 2 stages
| # | Stage | Boss | Enemies | Rewards | Base HP |
|---|---|---|---|---|---|
| 1 | Crescendo (Veteran) |  Boss Mega Cat |         |  5% | 100,000 |
| 2 | Crescendo (Insane) |  Boss Mega Cat EX |         | 100% | 400,000 |