Run and gun game released in 2000 on Neo Geo. But... it didn't age a bit and is still more than up to par to today's standards. The screen is filled with enemies, explosions and projectiles. Everything is nicely animated and the cartoonish pixel art graphics are gorgeous.

The gameplay is frenetic, and very responsive. It doesn't feel stiff like a lot of old games, this game is very smooth to play. A good point is that it can be played with mouse & keyboard, or gamepads. And it recognizes different brands of gamepads, unlike a lot of recent games that only lazily recognize the traitorous Xbox360 pad.

Metal Slug 3 is the pinnacle of the series. Tons of weapons, different branching paths, tons of different enemies and creatures to fight (soldiers, zombies, extra-terrestrials, snails, wasps, submarines, planes, yeti men, and so on and so on). Moreover, the gameplay sequences undergo a lot of variation: different vehicles, space invaders/shoot-em-up phases, aquatic fight, and so on and so on. The boss fights are very well done (can be very very tough though). Once a mission has been unlocked in the main campaign mode, it is possible to start from it at any time.

There is an online leaderboard for all the difficulty settings, but the best thing is that there is an online Co-op mode. ONLINE CO-OP MODE ON METAL SLUG!!!!!!!!!!!!!! This is awesome.

On the negative side, despite the quite good port, some bugs can appear at times to times, such as the sound disappearing. There aren't many graphical filters, but it is possible to add them if you follow this guide (I recommend HQ4X) http://gtm.you1.cn/sharedfiles/filedetails/?id=227190051

Overall, this game is tons of fun, is reasonably challenging and feels great to play. Online Co-op is much appreciated.

I wish Metal Slug X (Metal Slug 2 revamped) will also be ported to Steam by the same team.

Run and gun game released in 2000 on Neo Geo. But... it didn't age a bit and is still more than up to par to today's standards. The screen is filled with enemies, explosions and projectiles. Everything is nicely animated and the cartoonish pixel art graphics are gorgeous. The gameplay is frenetic, and very responsive. It doesn't feel stiff like a lot of old games, this game is very smooth to play. A good point is that it can be played with mouse & keyboard, or gamepads. And it recognizes different brands of gamepads, unlike a lot of recent games that only lazily recognize the traitorous Xbox360 pad. Metal Slug 3 is the pinnacle of the series. Tons of weapons, different branching paths, tons of different enemies and creatures to fight (soldiers, zombies, extra-terrestrials, snails, wasps, submarines, planes, yeti men, and so on and so on). Moreover, the gameplay sequences undergo a lot of variation: different vehicles, space invaders/shoot-em-up phases, aquatic fight, and so on and so on. The boss fights are very well done (can be very very tough though). Once a mission has been unlocked in the main campaign mode, it is possible to start from it at any time. There is an online leaderboard for all the difficulty settings, but the best thing is that there is an online Co-op mode. ONLINE CO-OP MODE ON METAL SLUG!!!!!!!!!!!!!! This is awesome. On the negative side, despite the quite good port, some bugs can appear at times to times, such as the sound disappearing. There aren't many graphical filters, but it is possible to add them if you follow this guide (I recommend HQ4X) http://gtm.you1.cn//sharedfiles/filedetails/?id=227190051 Overall, this game is tons of fun, is reasonably challenging and feels great to play. Online Co-op is much appreciated. I wish Metal Slug X (Metal Slug 2 revamped) will also be ported to Steam by the same team.