Sprite animation master ultimatemaverickx is at it once again, this time with an all-new fan game. Check it out:
As you can tell from the title, "Rockman Xover Reborn" is set as a sort of sequel to the cult-favorite Japan-exclusive mobile game, Rockman Xover. OVER-1, one of a line of mass-produced robots created by Drs. Light and Cossack, is awakened in the future by Circuit to deal with a series of time rifts that are summoning enemies from the past.
If you'd like to give it a shot for yourself, then you can find it on ultimatemaverickx's DeviantArt page here.
There, ultimatemaverickx also notes that this may not become a full game, but they may continue the story at some point. In the meantime, if you'd like to see what else they've been working on, you can see some of another game called "Time Drifter" here.