View source for Moat Door Skip

'''Moat Door Skip''' is a technique which uses [[Parallel Universe]] navigation to reach the door in the castle moat without lowering the water from inside. This is done in the [[1 Key]] TAS to beat the game without collecting the basement key from [[Bowser in the Dark World]]. Normally, Mario cannot open doors underwater. To open a door, Mario must be in either the walking action or the deceleration action, neither of which are obtainable underwater. However, the door is still functional underwater and, if Mario can get directly to the door without going underwater, there is a 1-frame window where Mario can open the door before the water takes action. Since water is not loaded in PUs, careful PU movement allows Mario to get to the door without going underwater and open it. The PU movement requires a substantial amount of speed, and there are two methods for hyperspeed that can be used for moat door skip; [[Hyperspeed Walking]] and Elevator BLJs.