Game specific notes

Chunithm (Chusan)

Required patches

No encryption & TLS

Additional notes

Class/Dan and National Matching modes will work after playing the first game
(both when you first set up the game and when you update the game's rom or options).
National Matching requires additional setup.
For user box customization, use the AquaNet website.
Many aspects of the game may not work in freeplay mode, this is not a server-side restriction.

Maimai DX

Required patches

No TLS
No certificate pinning
No URI obfuscation
No encryption

Non-working features

KOP related
Tournament mode
Chart recommendation (Festival)

O.N.G.E.K.I

Required patches

No TLS
No certificate pinning
No URI obfuscation
No encryption

Non-working features

KOP related
Physical cards

Card Maker

Required patches

No TLS
No encryption

Support status

Chunithm New: Yes, New (2.00)
Maimai DX: Yes, Universe (1.20)
O.N.G.E.K.I: No

Additional notes

Only stated version above are supported.
Server does not consider gacha rarity and probability weight during card draw.
Server returns same hard-coded serial for each cards. This is intentional behavior.
Due to its high correlation with every game endpoints, this may cease to work after major game version up.