Metal Slug ports

One of my guilty pleasures is a cartoonish, side-scrolling, third-person shooter called "Metal Slug." There are about a half dozen different versions of it, and they're all totally addicting. Check 'em out.

Ever on the lookout for distractions at work, I recently came across two unlicensed Flash adaptations of the game that have really eaten away at my productivity:

"Commando"




"New Metal Slug"

Which favorite video game of yours have you found remade online?