Transition Glitches

From ALttP Speedrunning Wiki
Revision as of 11:24, 7 June 2017 by Pinkus (talk | contribs)
Jump to: navigation, search

A set of major glitches that involve the use of door transitions on the underworld.

Door Juke

A glitch which swaps data between two rooms, or overwrites completion flags in a room. This can cause chest contents to change, refill chests, regenerate keys, and toggle the "holes hurt players" flag which allows some Wrong Warps.

Door Warp

A Door Glitch which corrupts a door transition, causing it to transport the player multiple rooms instead of just one, or to transport the player in the wrong direction.

More advanced explanation

By transitioning on the same time as drinking a bottle or walking over a Somaria Block, the player animation of doing a transition is interrupted (Link is not "dragged" into the next room). However, the game will still recognize the transition and update certain memory addresses to indicate that you have now transitioned to the next room.

If you then keep moving towards the direction of the next room, the game will recognize yet another transition from the same door. This makes Link transition past screens, halfway into a room or similar. It is as if you were in the next room already when you started the transition.

If you don't keep moving towards the transition (for example performing transition+bottle on the same frame, but then releasing your dpad), Link will stay put, but the game thinks you entered a new room. This is what causes chests to have the wrong contents.

Note that you can stack Door Juke's - by performing multiple YBA's (and releasing dpad before bottle animation is over) you can trick the game to think you've transitioned multiple times. This can for example be used to fetch chest contents from "far-away" rooms.

See also

Underworld Fake Flute