Literal Rocking Music, unique combos for a simple two button beat em up and all the uncensored ketchup of the more liberal 90's, if you don't want to bother trying to play the Arcade one (As someone that has lots of games in his MAME i don't reccomend it) there is a Console Remake
(TRANSLATION: Ghost Chaser Densei) The game has a Fighting game-esque combo system that makes the game more complex than just "Wait for an opening and mash A until enemy is knocked out, Rinse and Repeat" Totally worth your time, oh, and there is a English Patch if you desire to know the story
The entire Rushing Beat trilogy is a blast, basically Irem's response to Streets of Rage, the first one is mid but not unplayable, is the sequels where the game has its spark, that say PLAY THEIR ORIGINAL JAPANESE VERSIONS since the USA versions gut parts of the games
And lastly Sonic Blast Man 2, the first one, pass, its a drag to play with the only novelty being having a minigame based on the Arcade game the main character is based on, the second one is where the meat lies, solid gameplay with interesting combos, shorter stages with far more varied meanie roster, a nice time killer
