my L pad broken,so how can i play HV:TToTT

on harvest moon the tale of two towns, L pad really need to change between run and walk,but my L pad already broken.
so anyone know how to change controller on ds? maybe a cheat or anything tht can make me always run?
pls help me :'(

get the DS fixed?

to fix your l pad form like a seal on your l pad then blow as hard as you can and voila ta-da its fix ;D ;)