What is UNDERTALE GREEN Jr.?
UNDERTALE GREEN Jr. is a fanmade prequel of UNDERTALE in development for the original DMG Game Boy.
Explore a miniature underground in a smaller scaled fangame as you guide Luna through an underground from long before Frisk's fall
Spare or Kill who you wish and decide the fate of old and new faces alike with multiple different endings depending on your choices
Be sure to follow if you're interested! The game's first dev log will be going up on:
Nov 1st, 2025
Bun Jr. (11x23 px excluding the white outline)
From Undertaless by @Graveyard_Grandmother 
https://gamejolt.com/games/undertaless/987690
Requested by @Graveyard_Grandmother
(Sorry for posting later than usual I lost track of time)
Lesser Dog Jr. (14x18 px excluding the white outline)
Drunk Bun Jr. (12x14 px excluding the white outline)
The eyes were hard to re-create at half of the sprites normal size, so excuse the simplification...
This week's Fan Art Friday celebrates Undertale! Accept the quest in your quest log to get started.
Doggo Jr. (13x21 px excluding the white outline)
Happy Joltidays! A new quest has entered your quest log. Accept the quest and follow @souptaels 
to open today's slot on the calendar.
Rabbit Girl & Cinnamon Jr. (15x21 px excluding the white outline)
Dogamy & Dogaressa Jr. (14x18 px excluding the white outline)
Posting it a bit earlier today because I'll be busy later
Undertale, but nothing's wrong.
Made a short Game Boy inspired Megalovania take to practise music making for UNDERTALE GREEN Jr.
Link in the article
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