A fighting game in a browser cannot be a combo game — the input latency is wrong for it and nobody is going to learn a twelve-button motion on a laptop. What it can be is a reading game, which is the more interesting half of fighting anyway.
One Cut is the purest of these: an ink-silhouette samurai duel where one strike decides it. The blade comes on the high, middle or low line and you have a few hundred milliseconds to answer it. You do not combo, you parry, and the whole fight is that one decision repeated until somebody gets it wrong. Kung Fu Arena is the busier one — block, counter and work through the dojo one opponent at a time.
Slash Saber trades reading for timing: take the whole line in one pass and keep the combo alive. Riot Line is the crowd version, a wave-defense brawler where the threat is numbers rather than any one opponent.
All four open in a tab with nothing to install and no sign-up, which is the usual reason a fighting game gets blocked on a school network rather than anything in the game.
