River Acheron is a set of special stages that appears on the 11th, 12th, 25th and 26th days of every month. It is unlocked after clearing River Styx. The first stage yields 1 million XP when first completed, while the second stage drops the True Form of Express Cat, Bullet Train Cat.
List of Stages
English Version | Japanese Version | Translation | Energy Cost | |
---|---|---|---|---|
Stage 1 | Wrath of Carnage (Deadly) | 阿・修羅の道 極ムズ (Omone・Shura no Michi Goku Muzu) | A・Shura's Path Extreme | 200 ![]() |
Stage 2 | Revenge of Carnage (Merciless) | 羅刹街道 超極ムズ (Rasetsu Kaidō Chō Goku Muzu) | Rakshasa Highway Super Extreme | 200 ![]() |
Appears
Japanese Version
- The 11th, 12th, 25th and 26th days in any month
- First appearance: April 25th, 2019 to April 26th, 2019
English Version
- The 11th, 12th, 25th and 26th days in any month
- First appearance: May 25th, 2019 to May 26th, 2019