I looked yesterday for an emulator Game & Watch: Octopus, but impossible to find even on Romstation.

Someone would have a link ?

I don't think there is any emulation for the original Game & Watch console but you can play 'Game & Watch Gallery' on GameBoy, 'Game & Watch Gallery 4' (Advance) on GBA or 'Game & Watch Collection 2' on DS instead.

Ok thanks ! I have test the game is HARD !!! x'D