The Gaping Dragon the only part of Dark Souls that I really remember fondly. Yeah, he fought pretty brainlessly, and basically just would one-shot you if you were dumb or unlucky enough to actually get hit, but he was cool looking, genuinely disturbing, and every original. Unlike alot of the other enemies, who I just thought were a bit lame, the Gaping Dragon actually freaked me right out. Everything about that encounter was just cool.
Done to emulate the Gameboy's aesthetic. Don't know why, but I really enjoy the low resolution, monochrome look.