By miniature I mean like a foot in length(length of the screen) and around a half a foot in width (from the top of the screen to the bottom). I'm sure this computer wasn't exactly built for gaming, but is there any possible way to play Mythruna without buying a new graphics card or computer??
Sorry, probably not.
"GLSL and OpenGL2 is required"
So if there isn't a way to get that working on the machine then there will be no way to play Mythruna.
*cough cough* may you tell me what GLSL and OpenGL2 are and what they do