I was playing pokemon light platinum and I got to Mt. Shuem but I can't use lava surf because I didn't get the 2nd gym badge. I don't want to restart my game so what i'm thinking of doing is using a walk through walls cheat so I can go across the water and fight the gym leader. I know I can just use walk through walls to go across the lava but I don't feel like well cheating. So can someone give me a download for a walk through walls cheat? I'm on a chromebook so I can't use cheat editor. Thanks in advance 
