This 'classic gem' from 1988's hero bears a striking similarity to a certain pop singer, don't you think? There's something fishy going on here. I found it at a garage sale and ported it to HTML5 for your enjoyment.

Unfortunately, the attack button is broken and you only get one life, but that's how it goes. I found a cheat code, though, and apparently there are more. Arrows move, X jumps, and if you hold down C and tap 'up up up up' you get a few seconds of high jumping. If you really want a challenge, press C at the start, then you only get one hit and if you die, you're sent to the beginning of the game. Brutal.

Known bugs:
Pausing the game doesn't reset the timer on the fireballs.
Restarting after completing the game crashes it. But really, why would you want to? Just reload the page.