Okay, back to seriousness. His spaceship moves up and down, and shoots two lasers that converge at one point. Mario's in a spaceship, and you have to maneuver very fast to avoid the blasts. He spends most of his time at the very top of the screen, occasionally swooping down to attack Mario. You hit Tatanga on the head 3 (or was it 5?) times to kill him, but that's easier said than done.
I think Tatanga should return in a new game, but then again I say that about every one-off character, and so far the only one to actually appear again was Daisy.
Lee "Mega 2" Sherman
Sneaky Lying Cheating Giant Ninja Koopa