Green is too a primary color of light.
You know all those painting classes you took growing up where they had you mix red, yellow, and blue together? Well, they were wrong! Ink primary colors are cyan, magenta, & yellow. For light (e.g. your TV), the primary colors are red, blue, & green. Look it up some time.
Wow, this might've been a good game if it were a little less simplistic. It gets too easy, even on the later levels.
At least it got me 35 points easily!
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 "Nano War"){kind=icon}