Space Invaders Blanket

This is my biggest project so far. Even I think I am a nutter for trying this one. I have designed the majority of the charts for the coloured patches, but have only made about 6 of the patches! OUT OF 255! This is going to be huge; approx. 5'8" x 5'8". The reason there are so many patches is 'cause I want each invader to have its own patch.

So far I have only knitted the patches for one of the invaders

Pattern available here