StrategyWiki has more information about MapleStory Quests
There are over a hundred available quests,[6] each with varying prerequisites; most quests may require the player to have attained a certain level or to have completed another certain quest.[6] Most available quests require the player to retrieve a certain amount of spoils attained from monsters or to traverse an obstacle course. Some quests can be repeated, although the reward(s) and given EXP may be different from those attained during their first completion.

Jump quests are a unique type of quest in which a character starts at one area of a map and uses timed jumps to get from one to another specific platform. Players attempt to avoid enemies and obstacles that can knock them off of the platforms. Skills and abilities that increase jumping distance or speed do not have any effect during these quests.