Nexon has announced the deployment of a series of Halloween themed events and fun for MapleStory. In addition, the team has added the Sidekick system and Monster familiars to the game.buy Maple Story mesos. Mercedes is a dual-wielding dynamo who can perform both long- and short-range attacks. Enjoy!If that's not enough, the Cannoneer also comes equipped with a monkey sidekick that can unleash some pretty devestating AoE attacks as well.