I don't think I've ever seen those codes before. I used the gameshark for cheats for this game. Even the barracuda cheat doesn't really work. I will try them out and see what the deal is and get back to you on this.
yeah my gameshark hasn't worked in a long time either. i only have one game save where i can still use the ion cannon without it recharging. best i can give you is that its also available as a free download here (pc version):
but if you see a gameshark that's in good shape let me know