I think the Bitmap Brothers mention is because the 2D graphics feel very Amiga-ish / BB-ish. When i read the comment i wondered "why the Bitmap Brothers referen

I think the Bitmap Brothers mention is because the 2D graphics feel very Amiga-ish / BB-ish. When i read the comment i wondered "why the Bitmap Brothers reference?" but once i saw the screenshot i thought "ah, i see". Compare the textures/2D artwork of, say, Doom, Duke3D or Blood and then the sprites of something like Chaos Engine, Gods (even the DOS versions) or even some of their 90s PC games like Z and i think you'll see how the visual style of Grind is closer to that of Bitmap Brothers' games than to Doom/Duke3D/Blood/etc.