Unlock Luigi
To activate everyone's favorite neglected plumber, finish Practice Bonus Stage One with each of the eight main characters. Luigi will then show up and challenge you. Defeat him to add him to your line-up. 

Unlock Capt. Falcon
To activate the F Zero star, you must defeat the game at any level with any character within 15 Minutes. Falcon will then challenge you. Defeat him and he's yours. 

Unlock Jigglypuff
To open up the cute Pokemon, defeat the game. Defeat Jigglypuff when it challenges you and you'll get it. 

Unlock Ness
To play as the Earthbound star, you must first defeat the game on Normal, with only three lives and no continues. Defeat Ness when he challenges you and you'll win him. 

Sound Test
Defeat Practice Bonus Stages 1 and 2 with all the characters, including the secret ones. The sound test will then show up in the Data Option. 

Borrow a Life
When playing a team multiplayer match,you can steal a life from one of the players by pressing A+B+Z+Start.

Item Menu
Play the Versus Mode 100 times* and an item menu will become unlocked. The menu enables you to set all the multiplayer options you would wish for. You can determine which items will show up in the battles, and which won't. 
*Actual number of times may vary from pak to pak.

Classic Mushroom Kingdom
To access the hidden classic Mario World 1 stage, beat the game's one-player mode with each of the original eight characters and play on each stage in the versus mode. At the end, the game will tell you that you can now access Classic Mushroom Kingdom in the versus mode. 

Credits Fun
When you beat the game and the credits start to roll, you can use the Control Stick to move the cursor in the middle of the screen. Press B while the cursor is pointed at a name to stop the credits from scrolling to learn a little bit more about that person. You can also fast foward the credits by holding the Start Button

Profile Fun
On the character profile menu, you can move the characters by holding Z and moving the stick

Gameshark Codes submitted by Kyle Matthews
Unlock all Characters: 810A4938 0FF0

Level Modifier: 800A4D09 00?? (?? = whatever stage #)
00-07 - Normal Stages
08    - Classic Mushroom Kingdom
09-0A - Kirby Beta Levels
0B    - Level From "How To Play SSB Demo"
0D    - Metal Mario Level
0E    - Fighting Polygon Team Level
0F    - Bonus 3 Level
10    - Master Hand's Level

Infinite Lives for P1: 800A4D33 0004

P1 Infinite Jumps on Peach's Castle stage: 8025E298 0001
P2 Infinite Jumps on Peach's Castle stage: 8025EDE8 0001
P3 Infinite Jumps on Peach's Castle stage: 8025F938 0001
P4 Infinite Jumps on Peach's Castle stage: 80260488 0001

P1 Infinite Jumps on Congo Jungle stage: 8026AFC8 0001
P2 Infinite Jumps on Congo Jungle stage: 8026BB18 0001
P3 Infinite Jumps on Congo Jungle stage: 8026C668 0001
P4 Infinite Jumps on Congo Jungle stage: 8026D1B8 0001

P1 Infinite Jumps on Hyrule Castle stage: 80263058 0001
P2 Infinite Jumps on Hyrule Castle stage: 80263BA8 0001
P3 Infinite Jumps on Hyrule Castle stage: 802646F8 0001
P4 Infinite Jumps on Hyrule Castle stage: 80265248 0001

P1 Infinite Jumps on Planet Zebes stage: 8026A4A0 0001
P2 Infinite Jumps on Planet Zebes stage: 8026AFF0 0001
P3 Infinite Jumps on Planet Zebes stage: 8026BB40 0001
P4 Infinite Jumps on Planet Zebes stage: 8026C690 0001

P1 Infinite Jumps on Mushroom Kingdom stage: 80262E68 0001
P2 Infinite Jumps on Mushroom Kingdom stage: 802639B8 0001
P3 Infinite Jumps on Mushroom Kingdom stage: 80264508 0001
P4 Infinite Jumps on Mushroom Kingdom stage: 80265058 0001

P1 Infinite Jumps on Yoshi's Island stage: 8026D920 0001
P2 Infinite Jumps on Yoshi's Island stage: 8026E470 0001
P3 Infinite Jumps on Yoshi's Island stage: 8026EFC0 0001
P4 Infinite Jumps on Yoshi's Island stage: 8026FB10 0001

P1 Infinite Jumps on Dream Land stage: 80268038 0001
P2 Infinite Jumps on Dream Land stage: 80268B88 0001
P3 Infinite Jumps on Dream Land stage: 802696D8 0001
P4 Infinite Jumps on Dream Land stage: 8026A228 0001

P1 Infinite Jumps on Saffron City stage: 8026DF90 0001
P2 Infinite Jumps on Saffron City stage: 8026EAE0 0001
P3 Infinite Jumps on Saffron City stage: 8026F630 0001
P4 Infinite Jumps on Saffron City stage: 80270180 0001

P1 Infinite Jumps on Sector Z stage: 8026B5F0 0001
P2 Infinite Jumps on Sector Z stage: 8026C140 0001
P3 Infinite Jumps on Sector Z stage: 8026CC90 0001
P4 Infinite Jumps on Sector Z stage: 8026D7E0 0001

P1 Infinite Jumps on Metal Mario's stage: 8025DAE0 0001
P2 Infinite Jumps on Metal Mario's stage: 8025E630 0001
P3 Infinite Jumps on Metal Mario's stage: 8025F180 0001
P4 Infinite Jumps on Metal Mario's stage: 8025FCD0 0001

P1 Infinite Jumps on Polygon Team's stage: 8025CC68 0001
P2 Infinite Jumps on Polygon Team's stage: 8025D7B8 0001
P3 Infinite Jumps on Polygon Team's stage: 8025E308 0001
P4 Infinite Jumps on Polygon Team's stage: 8025EE58 0001

P1 Infinite Jumps on Bonus 3 stage: 8023B150 0001
P2 Infinite Jumps on Bonus 3 stage: 8023BCA0 0001
P3 Infinite Jumps on Bonus 3 stage: 8023C7F0 0001
P4 Infinite Jumps on Bonus 3 stage: 8023D340 0001

P1 Infinite Jumps on "How To Play" stage: 8025CBA0 0001
P2 Infinite Jumps on "How To Play" stage: 8025D6F0 0001
P3 Infinite Jumps on "How To Play" stage: 8025E240 0001
P4 Infinite Jumps on "How To Play" stage: 8025ED90 0001

P1 Infinite Jumps on Beta Kirby 1 stage: 8025D210 0001
P2 Infinite Jumps on Beta Kirby 1 stage: 8025DD60 0001
P3 Infinite Jumps on Beta Kirby 1 stage: 8025E8B0 0001
P4 Infinite Jumps on Beta Kirby 1 stage: 8025F400 0001

P1 Infinite Jumps on Beta Kirby 2 stage: 8025E9C0 0001
P2 Infinite Jumps on Beta Kirby 2 stage: 8025F510 0001
P3 Infinite Jumps on Beta Kirby 2 stage: 80260060 0001
P4 Infinite Jumps on Beta Kirby 2 stage: 80260BB0 0001

P1 Infinite Jumps on Yoshi's island (Alternate) stage: 80263398 0001
P2 Infinite Jumps on Yoshi's island (Alternate) stage: 80263EE8 0001
P3 Infinite Jumps on Yoshi's island (Alternate) stage: 80264A38 0001
P4 Infinite Jumps on Yoshi's island (Alternate) stage: 80265588 0001

Luigi on Boarding The Platforms Round: 80269518 0001
Mario on Boarding The Platforms Round: 80268E18 0001
Link on Boarding The Platforms Round: 8026A678 0001
Captain Falcon on Boarding The Platforms Round: 8026A398 0001
Yoshi on Boarding The Platforms Round: 80268A58 0001
Kirby on Boarding The Platforms Round: 8026A018 0001
Fox McCloud on Boarding The Platforms Round: 80277AF8 0001
Pikachu on Boarding The Platforms Round: 8026A088 0001
Jigglypuff on Boarding The Platforms Round: 8026BE88 0001
Donkey Kong on Boarding The Platforms Round: 80268828 0001
Samus on Boarding The Platforms Round: 80267F18 0001
Ness on Boarding The Platforms Round: 80269DC8 0001

Character Modifier P1: 800A4B3B 00?? (?? = character)
Character Modifier P2: 800A4BAF 00??
Character Modifier P3: 800A4C23 00??
Character Modifier P4: 800A4C97 00??
 04 - Luigi
 07 - C. Falcon
 0A - Jigglypuff
 0B - Ness
 0C - Master Hand
 0D - Metal Mario
 0E - One of the Fighting Polygon Team  Members #1
 0F - One of the Fighting Polygon Team Members #2
10 - One of the Fighting Polygon Team Members #3
11 - One of the Fighting Polygon Team Members #4
12 - One of the Fighting Polygon Team Members #5
13 - One of the Fighting Polygon Team Members #6
14 - One of the Fighting Polygon Team Members #7
15 - One of the Fighting Polygon Team Members #8
16 - One of the Fighting Polygon Team Members #9
17 - One of the Fighting Polygon Team Members #10
18 - One of the Fighting Polygon Team Members #11
19 - One of the Fighting Polygon Team Members #12
1A - Giant Donkey Kong
Infinite Bullets On RayGun: 8025D437 0008

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