Yerles conbat[] plane only appears in the Elona+ version of Elona. Despite the typo, it is a fighter jet. It is a ranged attacker that always spawns with a grenade, and will throw it endlessly while keeping its distance. Has a chance (1/200) of spawning with Nova Grenade. Grenades that explode will deal sound damage and can confuse targets with low sound resistance. Its behavior coupled with its high speed, Eye of Mind skill and Evasion make it really hard to deal with, and it can do dangerous damage to groups of pets.