Where do you find Bass BX In Megaman Battle network 6 Falzar

the samw way you find him in Gregar , go to the undernet zero from green area ( examine the back of the big tree in green area 2 ) move around until you find Bass and defeat him , then go to the Graveyard and defeat Bass SP ( you need all the standered chips to battle him ).
if you have already done this , just go to underground 2 , go to the plateform where you battle Falzar Beast megaman .
you will battle Falzar Beast megaman SP first , then you will battle Bass BX .