Only from the graphics but personally i think this HUD is horribly impractical.
Way too small for the soul and the attacks to dodge.
Toby did the sizes pretty good.
And for the GBA, please not, screen would be too small, controlls would be disgustingly inaccurate.
I am glad Undertale supports an actual controller.
Another issue would be on the GBA, if you move your hands, you move the entire screen.
The game simply would not work as we know it if it were on GBA.