Gallery Corner Museum:
60 Stars are needed to unlock the nine titles for display only (not actual game play). They are, in order of appearance: Manhole, Tropical Fish, Mario's Bombs Away, Parachute, Bombsweeper, Climber, Safebuster, Lifeboat, Zelda.

Secret Games
There are 5 secret games in Game & Watch Gallery 4. To unlock them, you must get a certain number of stars.
* Get 5 stars to unlock ''Chef''.
* Get 20 stars to unlock ''Mario Bros.''.
* Get 35 stars to unlock ''Donkey Kong''.
* Get 50 stars to unlock ''Octopus''.
* Get 65 stars to unlock ''Fire Attack''

Unlock Credits
Get 170 stars

Erase all saved data
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.

Hidden Music in Octopus.
Listen carefully to the 'back beat' of the music in the modern Octupus game. You'll notice it's exactly the same as the first level in the Arcade classic Popeye by Nintendo!

Star features:
The more stars you gain, the more features you will unlock. Note: Museum games are classic play only. You do not earn any Stars for the games in the museum.

5: Chef
10: Manhole (View only)
15: Tropical Fish (View)
20: Mario Bros.
25: Mario's Bombs Away (View)
30: Parachute (View)
35: Donkey Kong
40: Bombsweeper (View)
45: Climber (View)
50: Octopus
55: Lifeboat (View)
60: Zelda (View)
65: Fire Attack
70: G&W History (Gallery Corner Feature)
80: Manhole (Classic Play)
90: Tropical Fish (Play)
100: Mario's Bombs Away (Play)
110: Parachute (Play)
120: Bombsweeper (Play)
130: Climber (Play)
140: Safebuster (Play)
150: Lifeboat (Play)
160: Zelda (Play)

More-Difficult Star Mode
If you get 1,000 points in modern mode , you will unlock
the "More-Difficult Star Mode"
Cast Credits
To view the Cast Credits, collect all 220 stars