Super Smash Brothers
Play as LuigiFinish the Bonus 1 "Break the Target" and 2 with all eight original characters and one bonus character. You can do this with Bonus 1 practice, then if you lose you can use another character for a rematch
Play as Ness
Finish the game using normal difficulty with 3 lives and defeat Ness
Play as Captain Falcon
Complete the game under 20 minutes with any character and difficulty and any # of lives then defeat
Captain Falcon
New Outfits
At the character select screen press C-Left, C-Right, C-Up or C-Down
Go to Mushroom Stage
Finish the game with all original characters (all 8). Mushroom stage will be available under versus mode
Go to Item Switch menu
Get 100 kills with any 1 character to get a item switch menu which allows weapons and their frequency
to be changed
Music Test Option
Complete Bonus 1 & 2 with all characters including secret ones and a "music test" option will be on the
data screen
See Mew in the Pokeballs
Get all 4 secret characters to see Mew (randomly) in the Pokeballs
Kirby Taunt
After eating another character Press L to do his taunt
Get Jigglypuff
Beat the game in under 20 minutes - Also reported as Beat the game with Link and defeat Jigglypuff