TSR COMPO Vol.3: "In the name of goodNES"

[Garamonde]

except this is not the compo's objective, at all.

Still, I love the idea. Maybe make Mattrex smaller because in actuality he is nowhere near that large compared to X:



Plus it looks like you used too many colors on him. But also it looks like you just traced the original sprite so I'd try to make his pose a little different too.