Happy Valentine's Day! Wanted to make a special upload for these two blue birds.
This is a mashup of Undertale Yellow's song called "Protocol" and Deltarune's song called "Smart Race" for when you fight Martlet and Berdly. I also did all the editing in the video myself, so I hope you enjoyed that! If you want to use this in a video, feel free, just give me credit! Whenever I post, I will try to make it as high quality as I can. Leave a like if you enjoyed!
Undertale/Deltarune Text Box Maker: https://www.demirramon.com/generators/undertale_text_box_generator
Martlet: https://undertaleyellow.fandom.com/wiki/Martlet?file=Martlet+battle+idle.gif
Berdly Undertale Sprite: https://www.spriters-resource.com/custom_edited/deltarunecustoms/sheet/169337/
Background is a screenshot of the Undertale Yellow UI!