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pic should be the metal gear guard altert blink; its more recognisable and known
I know this is a bit late, but I was thinking the same thing as soon as I saw this page. Not a lot of people know about every single anime series ever produced (seriously, all purpose catgirl nuru-nuru or whatever?), and this isn't one of the more popular ones, to say the least, whereas anybody who's played Metal Gear OR Super Smash Bros. Brawl (or even seen gameplay of Metal Gear), two very popular games, would recognize the exclamation mark.
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How well does it match the trope?