To view the Cast Credits, collect all 220 stars.
At the title screen press:
up,up,down,down,left,left,right,right
If done correctly the screen will go black for a moment, and all high scores, stars, ect. will be deleted.
To unlock this option in the Gallery Corner, just get 70 stars.
If you get 1,000 points in modern mode , you will unlock
the ''More-Difficult Star Mode''.
You can unlock 9 games in the Museum. This option appears in the Gallery Corner. There are no modern versions for the games in the museum.
There are 5 secret games in Game & Watch Gallery 4. To unlock them, you must get a certain number of stars:
Get 170 stars