UPDATE: Unity 5.2.1 Patch

"At the start of our development, we're using Unity 4. Nearing the end of development, a few weeks before it goes to town, we migrated into Unity 5 for various reasons -- one of which being that the Opening Movie you watched in the end of each character's prologue wouldn't run in our Unity 4 Free Edition (the team bought Unity 5 instead of 4 Pro with the assumption that 4 will not be supported any more in a while). However, it seems like there were a few problems that came with it. In particular, many have reported input problems with Xbox Controllers in Windows 10. Unfortunately there was nothing much we could do about it other than wait for either Win10 or Unity to address this problem. And here it is now. We upgraded our engine to Unity 5.2.1, and through a few hours of testing we find that the game now correctly runs the combination of Xbox Controllers with Windows 10. We hope it'll do the same for anyone else experiencing the problem." - Ekuator Games