My biggest problem with Zero Mission's art-style is probably the colors. The boring white lighting, the nauseating maroon outlines, the immersion-breaking blue filler, the boring de-saturated colors, and the overall lack of cohesion and depth between foreground and background elements.

Zero Mission: Wrieke Ullrhd is a hack that aims to remedy Metroid: Zero Mission's coloring problems. Most in-game palettes have been changed to both make the game look "better", as well as bringing the game more in-line with NEStroid and Super Metroid in terms of atmosphere.

Minor changes to some art have been made to fit the new palettes.