DigiCommunication 2: Datou! Black GemaGema Dan is a Game Boy Advance game developed by M2 and published by Broccoli based on the anime Di Gi Charat Nyo (part of the larger media franchise Di Gi Charat).

The sound test is unlocked after getting the second ending (obtainable after beating the game once) and PARTY☆NIGHT is unlocked in the sound test after getting the third ending.