Man, Metal Slug on Flash Classic? This takes me back. It’s basically a pixel-perfect clone of the arcade original—same chaotic run-and-gun action, same chunky explosions, even the same weirdly satisfying "POW!" sound when you grab power-ups. The sprites are ridiculously detailed for a Flash game, too—like, you can see the sweat on Marco’s face when he’s getting swarmed by aliens.

Controls are simple but tight: WASD to move (and duck like your life depends on it, because it does), JKL for shooting, jumping, and hurling grenades like a maniac. First time I played, I mashed buttons until I figured out which one did what—turns out spamming bombs is a legit strategy when you’re cornered by tanks.

Oh, and the difficulty menu’s in Japanese, but just pick the middle option unless you hate yourself. Trust me, even "normal" will have you sweating by Stage 2.