Metal Slug
SNK’s classic series Metal Slug takes the Contra-type “side scrolling shooter” game and adds an unforgettable art style to it. The excuse plot is you controlling a member of the elite “Peregrine Falcons” against the “Rebel Army”-and more weird enemies.
The art, from the goofy yet legitimately detailed sprites to the lavish backgrounds to the smooth animations, is consistently amazing. The music isn’t as standout (with a few exceptions), but is always at least serviceable. As for the gameplay, it’s both very good and inherently limited.
The action, weapon combinations, and controls are all excellent with the exception of a few clumsy platforming sections. The issue is the games are very short and were originally for arcades. So it’s either “be good enough at this very hard game to avoid deaths or just brute-force your way through with credits”. This probably couldn’t have been avoided, but it’s still a little bitter. That being said, this series is a classic for a reason and the games are well worth playing.