At zone 35, Clickables will appear. They randomly in one of the six locations as small headcrabs. Click on thise headcrabs to get a large amount of gold, and a chance to earn a ruby, the game's premium currency. Also, there is a flying Clickable that activates a random ability. The ability can be a locked one and does not start a cooldown. Also, if the random ability is Clickstorm, it will break the Idle status. If you have the Energize ability activated, the random ability will use Energize Charge.