Metal Slug Marco!

I really like the way Fio, on top of the tank, turned out on.
Dunno what it is about it, eastheticly looks nothing like it, but just by expression, I guess, really reminds me of the Ren & Stimpy artstyle. Also makes me think of the artstyle of the 'Close But No Ciguar' music-video, from Weird Al.

Why is the slug made out of metal?

Since someone asked, look up the 1995 San Diego tank rampage

A game named after the tank