Is there a manual for this thing anywhere? I have tested it with A Bug's Life and it seems to work ok. But Inspector Gadget Operation Mad Kactus crashes even if I do not apply any cheat codes. The game works fine plugged directly into the GBC. Are some games incompatible with Gameshark pro hardware? What is the switch for on the back? I discovered the button is reset, but the switch doesn't seem to do anything.