this will be an emulator for several video-game-consoles, depending on the radare2-api. This will emulate these archs:

Gameboy-z80
`-you can use http://runas-racer.com/prj/gbdis/hackboy.gb for legal testing. It's a tiny gb-rom I created once for
testing payloads for gameboy.
Here is how it works( if you want to play with it):
arrow keys: normal seek
start: call current offset
select: open select-menu
(in select-menu)
up and down: seek through modes
a: choose current mode
b: abort
(modes)
s: seek to a specific 16-bit-offset
w: write byte to current offset(you can only write on the ram; there is a 64-byte-playground for you)
d: nothing (was planed to disassemble (sorry, I am lazy))

if you have selected one mode, use the arrow keys to set a value for w and s.

sms-z80

snes

and much more

A lot of things need be to done

this project is dead, sry but you can still play with hackboy.gb :)