Super Mario Sunshine Cheats

go to the beach where the \"sunglass-man\" is sitting. walk over to the second umbrella and walk around it. sooner or later you will hear marios shoes klanking on something metal (you might see the outline of a brown circle as well). jump and but pound into it and you will find a blue coin. if you do this later, you will find a 1up mushroom. there are other hidden pipes but they have yet to be found...