game dont run smoothly, cause unity engine or what? :V

Upon loading into the first level, PAC-MAN's arms and legs were completely black, almost as though they were a silhouette for a fighter on a "Challenger approaching!" screen in a Super Smash Bros. game. Is this supposed to be the case, or is it a bug? If it's the latter, then why is it happening, and how do I fix it?...

I was able to play this when it came out with my xbox controller without issue, but now every time I boot up the game, it just defaults to keyboard controls. My controller is plugged inbefore I boot up the game, I even tried rebooting steam. Steam is clearly recognising it since I can even boot up Big Picture mode using the controller, but the game itself isn't recognising the controller at all....

Imagine me playing this game with 30 years. No reason to be buyed. Maybe 10 years ago i could be bought it lol

Not even any acknowledgment?