Thanks for you input. I appreciate you taking the time to try our game. It is true that the game was not optimized in anyway, so some lag may occur from whatever it may be. There is jittering when playing because the camera isn't set up the best way. It fulfills the very basic needs of it running. I haven't been working with UE4 long enough to really profile what's going on.
As for the gameplay, we didn't really plan much of anything. We did try to make a game design doc, but there's really not much in there. We just wanted to make one for fun. We just had the idea of a pixel going from 2D to 3D and went with it. The collision of the player is not the same size as the mesh. I wasn't able to figure out this problem I had with compounding colliders, so I just ditched it. It is what it is.
Thanks for trying it out and every constructive feedback is helpful!