Obtaining Cards

Cards are virtually the essence of the game. Luckily, there are multiple easy ways to obtain cards.

Shop
Card packs can be purchased in the "Shop" (a shopping cart icon on the bottom banner, second from the left) using diamonds, Rhythm Points (RP), Emeralds, or money.

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Normal Card Packs
These card packs are purchasable using RP or Emeralds. They have no chance to obtain signed or prism cards (or perhaps they do, but I've never received one). These card packs give C to A cards. This type includes packs of: ‍
 * 20 Cards for 20,000 RP
 * 100% chance to obtain 2 B cards or more!
 * 10 Cards for 10,000 RP or 200 Emeralds
 * 100% chance to obtain 1 B card or more!
 * 1 Card for 1000 RP or 40 Emeralds

Emerald Card Packs
These card packs are purchasable only using emeralds. They have a higher chance to obtain either signed or prism cards. These card packs give B to R cards. This type includes packs of: ‍
 * 10 Cards for 1500 Emeralds

Premium Card Packs
These card packs are purchasable only using diamonds. They have the highest chance to obtain either signed or prism cards. These card packs give B to R cards. This type includes packs of:
 * 20 Cards for 360 Diamonds
 * 10 Cards for 200 Diamonds
 * 1 Card for 20 Diamonds

Missions
Missions offer C or B cards daily. These missions are:
 * Obtain Star:  __ Mode 1 or 2 Star Clear
 * Reward: 1 C Card


 * Spend your RP: Total RP Spend ____ or More
 * Reward: 1 C Card


 * Clear Mission Song:  __ Mode Clear
 * Reward: 1 B Card

Other Methods
One easy and popular method is to successfully complete songs. Easy Mode songs have a high chance to drop 1 card. 1 card packs also rarely give a B card instead of a C.

Another method is attendance. On average, every three days, you may log in to receive 1 C card. Logging in 15 days in a month earns an A card, and 25 days, a signed card.

Completing achievements such as The King of Attendance, The Master of Clear Songs, or Card Power Up earns a player prism/signed cards or premium card packs. Other limited achievements that come when a new song is released for play can grant B to R cards of normal, signed, and/or prism qualities.

Completing Star Level Upgrades award players with cards ranging from normal to Prism packs to R cards (depending on how high your tier is).