Another one of the Survive! Mola Mola enemies, this one has a very long range (same as Dark Emperor Nyandam), but is single target. Deals significant damage, but has quite low health (~3,000).
It is basically Nyandam with a faster attack animation and much lower health. If your Cat Cannon is strong enough, you can simply fire it to OHKO Mola King by firing it. Even then, units such as Titan Cat can simply tank a hit from it and go in for the kill.