|Description||Play a Rated game and earn the most Zombie Monkey kills in the Mos Le'Harmless arena during the Hallow'een holiday|
|Orb Points||300||Orb Coins||3|
In the Halloween season the monkeys appear from turn 1, have 70 health, are undead, and throw Thorn Bombs rather than Thorn Balls.
You do not have to win the game to obtain the achievement, so if you are willing to sacrifice some rating it is easily obtained: simply play a rated game in Mos Le'Harmless and focus on killing the monkeys rather than your opponent(s).
The points and coins are currently uncertain. In-game the achievement is shown as worth 500 points and 5 coins, but in the Achievements Online viewer it is shown as 300 points.
This achievement can only be earned during the Halloween holiday.