What if "Adventure Time" was a 3D Anime Game Beta 8

IMPORTANT NOTE:
The save data files (including the Model Viewer files) is in a different location now compared to previous Beta demos. To find the location, go to the Options menu. Under the tab "Others", select "Save Data Path".

New:
-Ultimate Boss Battle added.
-New sword obtainable after defeating the Ultimate Boss Battle.
-4 new regular enemies throughout the game.
-6 new secret areas to find, accessible via Soul Mode.
-6 new outfits for Finn and Fionna, obtainable through the new secret areas.
-A new hack "2D Waifu" will make most of the NPCs to 2D artworks. (Obtainable in one of the secret areas)
-New abilities and upgrades
-Several new BGMs added throughout the game.
-Added Adult Flame Princess as an NPC and ally. (Remains incomplete)
-Lewd animations watchable through Ice King/Ice Queen's television.
-Minor gameplay added for Breakfast Princess.
-Damage value added.
-Model Viewer now supports Undo/Redo.
-Several models added in Model Viewer to include the new clothes, enemies, and a "Twinkie".
-New location called "Patreon Hall of Names" to place all Patreon credit names. (Accessible through the ladder in Marceline's house)
-Playstation 4 Controller support.
-Mac OS support.

Changes:
-You can now receive damage in Soul Mode.
-Attack pattern of Ice Queen's "Ice Swords" changed to become easier.
-Hats and Clothes can now be changed separately.
-1 lewd poster in Ice King's room redrawn. (To avoid confusion)
-Hiding the window of an NPC conversation will now let you move the camera slightly.
-Double jumping and dashing can now be used with an empty stamina. (But it still consumes stamina when it's not refilling)
-Quick Attack Upgrade has now been removed.
-Each sword have different speed, adding balance to the gameplay.
-Added sounds to the Model Viewer.
-Several assets changed to comply with Patreon's Guidelines and Terms of Service.
-Saving/Loading and file management improved. (Now uses backup files and temp folders)
-Folder for the save data can be opened using "Options>Others>Save Data Path".
-VR temporarily unavailable.

What's not in this beta:
-Adult Flame Princess Boss Battle.
-Nude version of the "2D Waifu Mode".
-Ending animation of Finn, Jake, and Ice King.

Known Issues:
-Several missing sound effects.
-A few incompatibilities with previous versions of Model Viewer files.
-Showing NSFW with non-NSFW setting in one of the secret areas.
-Option Settings not automatically saving on certain situations.