I wrong map glitched in Stick Arena. That was not me hacking.
I played Stick Arena Dimensions on Steam. It continued having me wrong map glitch until the round ended, and then the next round it put me in the same map as everyone else.
I originally thought that the other guy was hacking, but then saw that they all appeared to walk through walls. Then when they accused me of hacking, I figured out what that was. (Wrong map glitch.)