Here are all the passwords accessible from the main menu after you've beaten the game:

RESETTI 
Resets all passwords.

CIA_THICC
Multiplies all normal enemies by 4.

DARKNUT
Turns all graphics into darknuts.

RAGING_CLUE
Adds the enemy effects of Very Hard on lower difficulties.

LITTLE_WILLY
Adds the easy mode navigation effects (permanent shutters and non wait push blocks) on higher difficulties.

G2G_FAST
Ups player movement speed to an obnoxious degree.

LAG_MY_SHIT_UP
Prints messages to the console every frame.

BAGU_WAS_HERE
Glitches out all the tiles.

YOLO_SWOLO
Randomizes Link's HP every frame.

NAY4CE
Removes the check at the top of Adjean's Tower for the 8 Histories.

SLASHY_JOE
Gives slash on all swords.

SOUP_PER_BOMB
Gives an infinite super bomb.

SAITAMA
Gives an instant killing damage buff.

LAW_OF_SLAW
Gives enemies 4x as much HP.

CSET16
Changes the palettes of the overworld and dungeons to alternate versions.

RNGMAX
Enables the randomizer with all the recommended settings and quality of life featues enabled.

DINGDINGDING
Adds a compass beep to all dungeon rooms with items.

OK_BOOMER
Changes the Histories into newfangled smartphone devices.

ALTITE
Removes progressive item behavior from the randomizer.

IMPOSSIBLE_SEED
Removes randomizer logic.

BOMBWALLIO
Gives the effect of the secets ring from the start.

FI4ME
Marks items on the tracker that are logically accessible.

AOTS4
Enables alternate character mode.

NO_NUTMARE
Excludes Nightmare from randomizer logic.

SAURON
Applies the effects of all rings at once.

MANGOSTEEN
Fills the pool with rupoors.

THIS_IS_FUN
Adds a health draining effect when hit until you recover HP.

FINDOM
Adds a gradual rupee draining effect over time. When it runs out, you die.

BURNBABY
Undoes damage nerfs applied to the red and purple candles in randomizer.

WORSTITEM
Buffs the boomerangs to have more projectiles and damage.

HISTOIRE
Reveals the location of all the histories in randomizer.

OBSOL33T
Reverts Deedee and Gardea to their original signature spells.

BIGPIG
Reverts Bannon's nerfed defenses in character mode

========================
  Deprecated Passwords
========================
These still work but aren't that useful.

RNG
Enables the randomizer.

RNGSTD
Enables the randomizer along with easy mode blocks and shutters, compass beep, and the tracker map.
