Unlock The 5 Secret Games

Chef - 5 stars
Mario Bros. - 20 stars
Donkey Kong - 35 stars
Octopus - 50 stars
Fire Attack - 65 stars

9 Museum Games

Nine more games can be unlocked in the Museum (located in the Gallery Corner.) To see a game, you'll need a certain amount of stars; to play the game, you'll need even more.

Manhole - 10 stars to see it, 80 stars to play it.
Tropical Fish - 15 stars to see it, 90 stars to play it.
Mario's Bombs Away - 25 stars to see it, 100 stars to play it.
Parachute - 30 stars to see it, 110 stars to play it.
Bombsweeper - 40 stars to see it, 120 stars to play it.
Climber - 45 stars to see it, 130 stars to play it.
Safebuster - 50 stars to see it, 140 stars to play it.
Lifeboat - 55 stars to see it, 150 stars to play it.
Zelda - 60 stars to see it, 160 stars to play it.

Getting Very Hard For Each Game

To do this, get 1000 points or more on a game and then you'll unlock very hard depending on which type of mode you beat. You will not get any stars on very hard mode no matter how many points you have. Very hard mode is just for fun.

Getting Stars For Each Game

For every 200 Points, you get 1 star for each game. You can get up to five stars on both classic and modern games.