I'm calling it the UltraBoy 64; as you probably know Ultra was the codename for the 64 before it launched, and Boy is obviously a derivative from GameBoy - 64, well because it's 64 bits!
I have almost got the design down, but it's not quite done yet so you're gonna have to wait for a sketch.
What I do have though is... A Diagram!
Yeah I thought that would help me a lot when it'll come to actually assembling this thing.
So here you go:

Please tell me if there are any errors or recommendations that you may have with this diagram, after all this is my first project of this kind.
Oh and what does the Electrocapacitor do? Should I put it so it affects only the n64 or, as it is on this diagram, affects both the n64 and the screen LED's?
And will the battery be fine with the setup I have, or should I have a switch for when the battery charger is plugged in, and when it's not?
Thanks in advance!