Game&Watch
1 emu to use different G&W dumps (double and single screens)
[EDIT]
Yeah, Vectrex is also cool
and give an option to use scanned overlay templates.
Just keep in mind that you will need to hold the 3DS like a book, cause vectex on 3DS screen in normal position would be awefully small if you use borders to keep the Vectrex screenresolution or using it streched would kill the experience.
- Anyway, whatever you do
@nop90 if it's like your Handy emu, i'm sure we'll see a great product
[EDIT 2]
For the record, i do own 2 working Vectrex systems
it's one of the consoles a collector must have in his collection