Not sure if this is intentional but you can cheese and cheat a lot:
- steal the opponent's balls
- mess with their catapult
- grab balls mid air
- etc
Viewing post in Barrage jam comments
about messing around with the enemy catapult, I wasn't able to always do it but I did do it some times. I remember doing it immediately in the first level/arena.
I remember that the enemy already had placed a ball in their catapult, I'm not sure if they were clicking and dragging and I hijacked the control or if they were not clicking at all and I clicked first so I was able to control it.
Hope this helps you crush that bug :)