|This article is written
from the Real Life
point of view
A Door Jump is a glitch in the original Metroid game that allowed Samus to jump inside of doors and walls. It is commonly used to find Secret Worlds. It is also used for Sequence Breaking; for example, the Ice Beam can be collected without the Bombs by using this glitch.
How to performEdit
You need ball form to perform this. Rapidly morphing in and out of ball form gives you a small lift off the ground.
A Door Jump is performed by doing the following steps:
- Open a door.
- Let the door close on Samus.
- Rapidly press the A button and down on the directional pad. Press down first then jump and to aid ascension. 
- Once above the door, jump a bit to gain some distance.
- Repeat Step 3.
If the player messes up while in the wall he/she will be stuck in the wall unless he/she dies or resets the game. If the player messes up while he/she is still in the door press left or right (which side the door is on doesn't matter) to get out.