Mega Man Battle Network

Well, there's no magic trick to beating a boss, but I can make some guesses as to what might help you.

First of all, learn how to dodge the enemy's attacks. You need to have good reflexes and a good eye to where the boulders are about to fall in order to move out of the way in time. So right after StoneMan pounds, stop attacking for a few seconds and get ready to move, and be sure not to panic and make a mistake. You may want to stand in the middle when StoneMan is creating a new StoneCube so the cube won't end up in the middle and make it harder for you to get around. Be careful when using attacks like the Shotgun series that make you wait a long time before you can move again.

The laser beam is easy to dodge. Just don't be in the same row as where the little face appears! If it pops up in the middle row, you'll want to stop attacking StoneMan from there for a while.

Have you bought both of the PowerUps from the merchant in the first area of the internet yet? Buy them and go to the MegaMan status menu to equip them if you haven't already. Raising your Attack level to 3 will make your MegaBuster a lot more useful for rapid fire, though since StoneMan sits in the back, you should move back and forth between squares to make MegaMan shoot as fast as possible. Or you could put one PowerUp into Attack and the other into Charge, so you can charge up and release a shot worth 32 points.

There may be some more battle chips you'll want to stock up on before you face StoneMan again. You can always go back into the school network through one of the blackboards to collect chips like Invis1 and Quake1. Quake1 is strong, but not quite strong enough to stun StoneMan, so it's easy to use several of them in a row on him. If you're looking to form a Program Advance, Zeta-Cannon1 is a good option if you picked up a Cannon C. If you can find a MetGuard G (beat a yellow or red Mettool at medium Busting Level) and a Dash G (beat a Fishy at high Busting Level), then you can combine them with GutsMan G to form GutsShoot, which does a whopping 500 points of damage to the first enemy in your row. Use that on StoneMan, who has 600 HP, and you'll only need to blast another 100 HP off before you've won. Good luck!