This is going to be the same info from the gamejolt page.

The official remake of my crappy mugen fangame Sonic Battle Point Unlimited. Changed stuff and all now it's actually playable . Originally this game supposed to be based on the Archie comics but when I got into the IDW, I changed the target of the story to fit the actuality of the IDW's but now that I repurposed the game, it was worthless. So I said, fuck it, let's mix and match. So it's in an another timeline at the middle of the 3th Saga of the IDW and it's a massive crossover with many Sonic medias.