Flash sales are special sales that are triggered when specific criterias are met, such as leveling up or losing a battle. Flash sales offer limited-time, discounted prices on useful items.
AP Recovery Set Flash Sale[]
This flash sale occurs when a player's AP drops lower than the cost needed for a dance battle (five for Normal lessons, eight for Hard lessons/Pop Quizzes). However, this flash sale is only available once every 12 hours.
| AP Recovery Set Flash Sale | |
|---|---|
Sale Price = 10 Devil Points 
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(Full Price = 22 Devil Points) |
| Rewards | |
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| Grimm x 5,000 | AP x 200 |
We've Got Your Back Set Flash Sale[]
This flash sale occurs when a player loses a dance battle. However, this flash sale is only available once every 12 hours.
| We've Got Your Back Set Flash Sale | ||
|---|---|---|
| Sale Price = 20 Devil Points
|
(Full Price = 40 Devil Points) | |
| Rewards | ||
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| Grimm x 10,000 | AP x 50 | Glow Stick  x5
|
Congratulations Set Flash Sale[]
This flash sale does not occur until the player has reached level 15. From that point, the sale will appear:
- Every five levels from levels 15-40
- (15, 20, 25, 30, 35, 40)
- Every three levels from levels 43-58
- (43, 46, 49, 52, 55, 58)
After reaching level 58, the sale will be made available at every level increase.
Note: If the player advances to the next level outside of dance battles (ex. collecting To Do rewards), this flash sale will not appear.
| Congratulations Set Flash Sale | ||||
|---|---|---|---|---|
| Sale Price = 99 Devil Points
|
(Full Price = 198 Devil Points) | |||
| Rewards | ||||
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| Grimm x 10,000 | AP x 100 | Glow Stick x3
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Demon Voucher x5 | Story Key x3 |