Originally posted by: gentobu
Follow these in order. Pretty easy if you don't know how already. But you have to wait till after you get the gun and goto the save room with the extra round in it, i tell below when the time to do this trick is.
1.) Empty all items in chest except the grenade gun and the extra ammo. Make sure gun it in first slot and EQUIPPED.
2.) Back in the item box, place the flame rounds in the very first slot in item box. Upon hitting A on the ammo, it should highlight the very first slot in item box, if something is there, switch ammo with the item. Then place this othr item elsewhere in chest. If nothing is in first slot, just place ammo in it.
3.) Not exit box once ammo's in first spot. Then enter box again. Move to your 2nd slot of items your carring, hit A, and it should highlight the ammo, hit A again to bring to your items. Then exit box.
4.) Enter box again. hit right on control and hit A again on the ammo, it'll hightlight the first slot in item box like normal, then hit A. Ammo will go from your items to first slot like it should.
5.) Without pressing any buttons, hit left twice to go in the item box, it should go right to ammo, hit A and it'll hightlight the Grenade gun. Hit A again and it'll give you lots of ammo. Hit A again and your get twice the ammo, and keep hitting A and getting many extra ammo for gun. You'll get about 255 rounds each time you hit A. First of flames, then reg. grenade rounds. You prob. won't even use 255 in a single game, but if you get near, just refill with extras you have made.