There are many ways to do this.
1.Beat a castle or tower you have not beaten before
2.Beat the game
3.Spend 5 Star Coins at a sign
4.Beaten the game already? Pause on the level selection screen(press start) and select"save". This will only appear AFTER you beat the game.
super Mario BROS.
you cant
no you cant i suggest playing the other super Mario lands
Saving Super Mario Bros to your Nintendo Wii's Memory
pause the game and then click save progress
you can't. saving the game wasn't possible when super Mario bros. came out.
he was a plumber he had to save the princess
No, you cannot unlock Rosalina in Mario Kart Wii using a save file from Super Mario Galaxy 2. To unlock Rosalina in Mario Kart Wii, you need to have a save file from the original Super Mario Galaxy on your Wii. If that save file is present, you can unlock her by completing a specific set of criteria in the game.
Don't worry dude it autosaves :)
In Super Mario World 2: Yoshi's Island, The game autosaves after you finish a level.
In new super Mario bros. Wii to save it you have to exit the level your on and when it shows the level map you click + and where it says quick save you click it and the game is saved.
On the original hardware, you can't. But through emulation, you can.