The game was released between June and September 2010 in North America, Japan, and European regions.

At the Konami E3 2010 press conference, the lead producer of the series, Tak Fujii noted that the sequel has been vastly improved technically, allowing hundreds of enemies to be present on screen in one shot.

Some of the main changes the sequel introduces include an online co-op mode, leaderboards and brand new difficulty levels which make the game harder.

[10] Steve Butts of The Escapist gave the game two stars out of five, saying that Ninety-Nine Nights II has the fast combat, a large amount of enemies to fight and fantasy setting that the players can expect from this genre, but said that the fighting is tedious and the enemies are unchallenging.

[7] Roger Hargreaves of Metro gave it two out of ten, calling it a "tedious" Dynasty Warriors clone.