A chip that does 100 damage and the last Wood Form (WoodShdw) And use the 100 damage chip
the chage the megabuster and use the tornado on him.

how do i do wat my title says

Alpha can be destroyed easily, I used this strategy.

First get the shield style *any elements can do but Wood is better to kill alpha.*

Then you go to him,make sure you save before entering the door cause you might run out of
battle chips and be in trouble if you don,t have the wood shield style. You must also have
the wooden shield style to lvl 4 to get the Navi Cust program : ''reflect'', when Alpha
attacks you keep on using reflect (Press <- and B) until he whipes out attacks like
the bomb and the electric cannon thing so you can't really reflect it at him *unless he
does the bomb that flies to you and you time the explosion to blast him* use a move that
gets his narmor off and then blast him with powerful hits like herosword P. If you have
wooden shield style do the same but after you can't reflect use your mega buster and the
wood will do him some damage and pierce through his defence.

Note : To use the wooden megabuster to pierce alpha's defence you need to be 2 squares
away from him *at the most frontward square you start with, that gives you an advantage
and if you're good at virus busting you'll defeat him in no time. Hope this helps =)