It felt like playing air hockey.
At first seeing the pumpkin move past the player and then bounce off the walls made me wonder how to score. I guess the particle effects indicated the corners were solid and between the particles was a goal. Would have been more clear at a glance if the goal area was more explicitly marked.
Considering it's WASD control, movement felt pretty good. Might need a little more speed if playing a competitive match...but too much speed would also be a problem.