Thanks for playing! Lol, that sounds like a bug as the balls are supposed to collide with and kill the spiders. The massing of the enemies is due to the simplistic AI of just an aggro and combat radius and cooldown that is configurable at the actor level once the player exits the aggro box. Spiders aren't too smart so it doesn't really matter in my opinion :). AI Programming is what I enjoy most and have most experience with but wanted to focus on other aspects for this jam.