In Megaman battle network 3 white how do you beat alpha

Shoot his core a bunch of times to open it, then hit the exposed core with your strongest battle chip. Best ones to use are meteors, because they semi-home into alpha and one of them will open the core while the rest obliterate it.

Actually expose the core and have a folder filled with Rndmmetr once you expose the core use the chip and you should beat him very easily.