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
New thumbnail for UNDERTALE GREEN Jr.
(2nd image is the old one)
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)
Made a short Game Boy inspired Megalovania take to practise music making for UNDERTALE GREEN Jr.
Link in the article
Undertale, but nothing's wrong.
Rabbit Girl & Cinnamon Jr. (15x21 px excluding the white outline)
Howdy
Finally finished this costume before Halloween
Oh yeah and can't forget that the dog's soul is mine
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...
Lesser Dog Jr. (14x18 px excluding the white outline)
Madotsuki Jr. (10x16 px excluding the white outline)
I've recently been told Luna looks a lot like her, and until then I had no idea who she was...
LIKE OMMGGG! SHE'S SUCH A CUTIIIEEEEE!!! 
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