use R4CCE or you can download one in gbatemp's cheat database, put it in your systems folder in usrcheats.dat format..
Thank you for that it helped but after looking through the process i decided to go with my friends advice and do it my self nut thanks anyway
By the way, will these cheats screw or corrupt the data once used? And will you able to disable the cheat codes afterwards?
well some cheats do that, to make sure your save data will not be screwed up, make a back up save file or activate the save checksum bypass cheat that is available in some games such as rune factory....