It is a freeware fan game featuring VTubers from Hololive Production as the playable fighters.

At the start of a match, each player selects a main playable fighter, as well as a secondary assist character who can be summoned to perform additional attacks during battle.

During a match fighters also charge up a “superchat” meter, which can be used to activate special "super" moves.

[7] The developers announced plans to add 3 additional playable characters in future updates.

"[13] PCGamesN's Ken Allsop praised Idol Showdown saying, "I’m already impressed by the game’s catchy pixel art style and soundtrack.

I hop into the game’s tutorial mode and am immediately struck by its comprehensive instructions, responsive feel, and overall mechanical depth.