When randomizing is successful, it saves the settings to the user's browser local storage. When they later open the randomizer, a prompt appears allowing users to load their previous settings.
On request, allowed for the disabling of music and sound effects.
Implemented experimental level swapping of those with one exit and those with two exits.
Revamped graphical interface and major code refactoring.
Settings have been split up and flags changed from 4 character hexadecimal string to a string of descriptive characters.
ROM patcher integrated with the randomizer, which among other things, allows the randomizer to patch the DX ROM hack internally.
Beast Mode has been removed, though most features have been integrated into other features or as standalone features.
Deer Mode has been renamed OHKO Mode.
The cost of gambling has been randomized on the overworld.
Updated Deer Mode to remove hearts and stars from levels, including bonus games.
Fixed midway bell replacement in Space Zone 1 (if it is scrolling).
Deer Mode introduced, which starts the player with 0 lives and disables both soft resets and exiting levels via start and select.
v1.2 ROM compatibility has been fixed.
Physics can be randomized between Mario and Luigi (or Luigi only), in addition to ice physics.
Autoscrollers on certain levels can be sped up under Beast Mode.
For levels with dual exits, either they can all be randomly swapped, or all but Hippo can be swapped.
Bonus bell game power-ups have been randomized.
Flags now have a length of 4 hexadecimal characters.
v1.8.1 DX ROMs are fully supported.
UI changes: rearranged some elements, physics renamed gravity, does not allow flags that pick both physics options or both exit options.
Karamenbos ("thwomps") in Wario's Castle have randomized starting heights if enemies are randomized.
Certain platforms in Wario's Castle have randomized starting heights under Beast Mode (with randomized platforms).
v1.2 ROMs now properly display the file select screen with the seed and flag numbers.
Midway bells are replaced with enemies in Beast Mode.
Auto-scrolling is no longer allowed in Space Zone 1 if it has moon physics.
Credits have custom text and some parts are randomized.
Seed and flags appear on the file select screen.
Changes the ROM version text to the URL with the seed and flag numbers, and clicking it copies it to the user's clipboard.
After flags are inserted in the flags field, the checkboxes are checked automatically.
Seed and flag fields only accept valid inputs via URL, and only output what would be valid inputs.
Accepts seed and flags via URL in the format "/?s=SEED&f=FLAGS" at the end of the URL.
Options are now saved as flags, rather than integrated into the seed number.
If a DX ROM is randomized, it will be reflected in the output file name.
Boss levels can now be randomized. The golden coin shown corresponds to the level (not boss) beat, but will be saved as the zone that was completed.
Bosses can be randomized within boss levels.
Boss health can be randomized.
Power-ups during the Wario fight are randomized.
Hurry-up music is now an option for level music.
Hard mode introduced: certain elements in a set are selected more frequently (with bias) to produce more difficult outcomes more often.
Randomizer now checks the correct offset in the ROM for version.
Quickfix from v1.0.5 update now applies to v1.2 ROMs.
v1.2 ROMs are now supported.
If Space Zone 1 is an autoscroller, the midway bell is a heart to prevent being locked out of the secret exit.
Moon physics removed as a possibility for Pumpkin Zone 3 (locked out of secret exit).
Tree Zone 2 removed as a possible level for scrolling (locked out for completion with other enhancements added).
Pumpkin Zone 2 and Macro Zone 2 can no longer have any physics changed.
Piranha Plants can not be changed in Macro Zone 3 due to buggy graphics.