There have been bugs in the game that don't cause performance or crash issues, they are just funny. (plunger flying bug, boomerang bug, etc)
It would be neat to have a custom game option that permits these bugs to occur in the game (This would only apply to new physics bugs/ones that haven't been fixed yet)
These bugs are funny and could make the game more enjoyable. But I realize some people might not want them, so this would be a toggle for custom games only.