Play Nekketsu Kouha Kunio Kun (Japan) Online

Nekketsu Kouha Kunio Kun came out in 1987 for the Nintendo Entertainment System, developed by Technos Japan Corp. It was part of that wave of early beat 'em ups, before the genre really blew up with games like Double Dragon. This one had a distinct style, a little rougher and more focused on schoolyard brawls than saving the world.

You control Kunio, a high school delinquent, and you move screen by screen through urban environments beating up rival gang members. Your main goal is to fight your way to the end of each stage and take down the boss. The combat is simple but satisfying; you punch, kick, and can pick up weapons like bats or rocks lying around. One of the best mechanics is grabbing defeated enemies and throwing them into others, which clears space fast. The pacing is quick, and the difficulty can spike unexpectedly, especially when you're surrounded. It feels scrappy and immediate, like you're really in a street fight where anything can happen.