First off, do your parents know you're on the internet? Second, wrong section. Now that I'm done being an ass, time for real advice: almost any NOAC or AOAC would be a fairly easy project, so would be a atari 2600, NES, or maybe even a SNES.

A custom atari 5200 power supply means ,that there is the av cables and power suply an in one cable.

Could I use a retro duo?

not for just the nintendo side of it. choppin off the snes side renders the nes side useless. however, you can chop the nes side and use the snes side.

Ok know i know.But is the retro duo like the RES?

i have no clue what a res is...

a retro duo is a clone system that has nes & snes capabilities. it is one of the better clones compatibility speaking.

"res" is the Retro Entertainment System. It's like the yobo nes clone. I don't feel like finding a link to one.

dont let them troll because your ten .... if you can portabalize at ten then your a badass and thats a fact.

Problem solving skills, logic, intelligence, etc. are more important than age. Don't let people discriminate, this stuff is very possible if you know what you are doing. I agree on trying one of the suggested systems.

failbump-

You used to be helpful and nice. Now you seriously are a troll. You don't contribute, and most of your posts contain lolspeak or just LOLOLOLOLOLOL FAIL etc. This is ridiculous mako, I used to respect you, but this is getting out of hand, at least on here (BH). I'm going to assume you just hate this site and are trying to "kill" it. These websites are for MODDING. Now, if you aren't going to mod, then at least attempt to be on topic, and oh- maybe HELPFUL.