If you mean for the code, I have not tested it as I have emerald, but it is
7400013000BF
830005B00000
7400013000BF
830005B80200
7400013000BF
830005C0EA89
7400013000BF
830005C20814
730005C0EAAB
830005C0EAB6
L + R + UP
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Make sure the code is on when you start the game and press L, A, and up. If it still doesn't work you may be using the wrong version (ruby has versions 1.1 and 1.2, both use different codes) If it still doesn't work just use the Pokemon lists in the game shark to catch the other two starters.
Chat with our AI personalities
You don't get it in you key item's bag like in FireRed.It's on your pokenav once you obtain the system.
Store unwanted items in PC ( "Your Name"'s PC)
Go near some water and select the fishing rod out of your bag. You could press select so that you register it, and that you dont need to keep going back to your bag.
you can access your battle videos on your VS Seeker in your Key Items in your Bag
By using the start button, you can access the start menu. From there, you can scroll down and select the bag option using the D-Pad and A buttons.