Inspired by @Xanderjedi11…
UNDERTALE: COLLECTION
What is this?
It would be a collection of:
• Undertale, with additional content, and optional modes such as Hard Mode, a full version unlocked after you beat True Pacifist, and Red & Yellow mode, with Chara and Clover headghosts;
• Undertale Yellow, with an optional "Shades of Justice" mode;
• Deltarune, with no additional content since it's unfinished rn.
Featuring
• Addition of room_water_prebird and room_gaster into the main game, with the latter being accessed by waiting 66 seconds in room_mysteryman;
• Sans's sink being able to access to go to the Dog Shrine (pre-Mettaton EX), Mad Mew Mew room (pre-Epilogue), and Dog Casino (post-Epilogue);
• Instead of the Mysterious Door having the Dog Room, it would instead have a barren room with nothing except a key used to unlock Sans's room;
• The Home area featured in the 10th Anniversary Stream, tho changed to make it so you'd only be able to go to 2 zones: Gerson's home and the Dark Ruins (UTY);
• Young Noelle dialogue and a colored spr_mysteryman_door(?);
• Extra zones from Undertale Yellow and Undertale: Red & Yellow;
• All with the old game being even more polished like in Undertale: Bits & Pieces (hopefully New Hope will remaster it) and soon-to-be Undertale Plus!
• Asriel fight remaster inspired by the 10th Anniversary version by Corey Animations.
"Additions"
Flowey's post-game dialogue replaced by dialogue from Chara, cuz how tf can Flowey talk to Frisk while they're on the surface and Flowey in the underground!?
Why it won't happen by me
I don't have any experience in Game Design, and porting 3 games(+) will be hell. Hopefully someone (ahem @HnD_official on YT ahem) can use (wink wink) them...