Brand new game.
Works perfectly !
Expansion pak is required.

You can move with joystick or the D-Pad
C-right button to fast foward
C- Down button to save anywhere in the game.
Hold C-up button to load your file
( Be careful because if you accidently hit c -down button on the main menu it will save over your save file.)
So its very important not to mix C-up C-down button.

If the game is a game that does not save at all, its possible for me to add a FLASHRAM on the board so it can be saved anywhere in the game ( Like a save state )  BUT it would cost more to add a FLASHRAM , its important to contact me first prior purchasing this listing.
I have to make sure the game is compatible with the N64 first as well.

Please be advised

Game that does NOT work so far or does not work properly –
Pokemon yellow GB
Metal Gear Solid GBC
Perfect Dark GBC
Metal Slug GBC