What anime-inspired fighting game had Green Hill Zone as a stage?

By googling what fighting game features Kirito (the character on the left, from Sword Art Online), I came across the Wikipedia page for Dengeki Bunko: Fighting Climax.

Searching that game brought me to multiple pages featuring the same image you posted, such as this one, which has the following caption under the image:

Yes, there's a Sonic The Hedgehog themed stage in this game... but no Sonic. :(

Additionally, on the Green Hill Zone wiki page, under the list of appearances, this game is listed:

In the Japanese arcade game Dengeki Bunko: Fighting Climax, one of the stages taken from the SEGA franchise, aside from Valkyria Chronicles, is Green Hill Zone, with the design taken from Sonic Generations where the Springs and Dashpads are from Modern Sonic and the Rings are also visible.