100% Route for Drake & Josh. During your noclip state, you cannot grab any objects, and the only things that you can interact with are lasers, janitors, fangirls, bullies, puddles, cameras, and candy corn.
You cannot grab guitar picks (the diamond things) nor sheets of homework during that state, so you'll notice me either getting hit by bullies/janitors/fangirls or retry room.
There's probably a better route, but this is what I got. Oh, and once again, this is barely optimized, since I just wanted to quickly make a route using the glitch.
Btw: The last guitar gets glitched, and will not be handed to you despite getting all 20 picks.
Edit: Pointer to x is at address 0x00F678 in EWRAM. Offset it by 0xE4 after subtracting 0x02000000