General Fixes:

• Updated Papyrus' overworld sprites, as well as add a couple new ones.

• Updated Papyrus' dialogue sprites.

• Updated sans' dialogue sprites, as well as add a couple new ones.

• Updated sans' overworld sprites, as well as add a couple new ones.

• Updated sans' battle sprites, no more unfinished black and white sprites.

• Updated Toriel's overworld sprites.

• Updated Toriel's dialogue sprites.

• Updated Undyne's dialogue and overworld sprites.

• Updated Monster Kid's dialogue and overworld sprites.

• Updated Flowey's dialogue/battle sprites, as well as add a couple new ones.

• Completed Alphys' dialogue, battle and overworld sprites, with the Alphys date sprites being an exception.

• Completed Mettaton's battle and overworld sprites (Box, EX and NEO), added new ones.

• Completed Hotland and CORE's monster battle sprites.

• Completed Mad Mew Mew and So Sorry's battle sprites.

• Misc. attention to detail changes, like switches making noises, puzzles staying solved, cutscenes with new sprites, etc.

• Completed Hotland and CORE's overworld sprites.

Additions:

• Added several side areas, being Ruins' Sewer system, an explorable HOME, the Snowdin Teen Hangout area, the Hotwater Bathhouse, Hotland Heights, and several rooms throughout the entire Underground.

• Added some new cutscenes.

• Added new sound effects in several areas, like cancelling/proceeding in Genocide, a spare sound effect that isn't just the dust sound effect, text sfx for certain characters, brand new ones for certain situations, etc.

• Added several new tracks and remixes.

• Added some new Fun Events.

• Added NPCs throughout the entire underground.

• Added rooms.

• Added new naming screen easter eggs.

• Added a popup about Internet Features when booting up the game for the first time.

• Added Shimmering Monsters! They give you more GOLD and look prettier than your normal Monster (sometimes). Each area has a decreasing encounter rate for them, and only Monsters not integral to the story are without them (like main characters or monsters like Snowdrake or Shyren.

• Added battle backgrounds to several areas, like Hotland, the sans fight, CORE, Sewers, etc.

• Added some misc. minigames.

• Added some proper flavor text to the pause menu.

• Added a Mirror Mode, which flips the screen.

• Added rooms for each of the shopkeepers, rather than having you walk in and be transported to the shop screen.

• Added some misc. small lore additions, like Asgore being the one who planted the Bridge Seeds.

  And a whole lot more!

And that's all! Thank you all very much for sticking with us this past year! It has been a pleasure developing this update and we couldn't have done without your support!

(See ya in the next patch update )