Pokemon pearl need help question below?

Question

IN POKEMON PEARL when we reach underground using explorer kit <i have beat the elite 4 and captured giratina, heatran and all events> i want to remove the rocks in the secret base i dont have wi-fi or action replay cant get them to is there any other way to remove the rocks? if my freind is sitting beside me with his ds and my ds can i steal his flag if we have both gone down (no wi-fi)?can i get his flag more than 1 time?how do you play with the maze block is it worth getting for the spheres?can i play with it without wi-fi?is it a maze? (can contact me e-mail id is [e-mail]

Answer 1

get your friend to let you borrow the ds and then take his flag 50 times. talk to the man in hearthome city that gave you the kit and he will tell you.  

Answer 2

if you steal 1 flag, then your computer will tell you that you can move 1 boulder (go into put items away and go to the boulder and click) then it will alow you again when you have 3 flags (move 3) 10 flags (move 10)and 50 flags (move 16 aka. all)

Answer 3

get 50 flags and talk to the guy that gave you the kit utill he tells you how to move big bolders