Shpeefbus

Shpeefbus is a naturally-occurring status effect in the Scrimmy Bingus franchise inflicted by the player onto enemies. It directly influences the opponent's energy level.
All weapons deal a certain amount of Shpeefbus, but some do more than others. The higher amount a weapon inflicts, the quicker an enemy will become weak and easier to kill, making weapons that inflict more Shpeefbus very valuable. 
Shpeefbus is most notably increased greatly by Critarunga! attacks, which is one of the reasons why they are so powerful.