To unlock characters a different way, you must must play a certain number of Vs. matches.
To see several Japanese versions of the Nintendo systems in the trophy room, as well as a bonus Virtual Boy, switch the language on the game to Japanese.
After unlocking the Sound Test (portions of this trick can be done before unlocking the Sound Test, however), you can change the music that plays on some of the stages. When selecting them, hold L or R until the stage loads. Each human player competing in the match must also hold L or R. The stage's music will change. This trick works on the following stages:
- Infinite Glacier: Icicle Mountain (Retro theme from Balloon Fight for NES)
- Termina: Great Bay (The theme of Lost Woods from Legend of Zelda: Ocarina of Time for N64)
- Hyrule: Temple (A remix of various themes from Fire Emblem titles)
- Yoshi's Island: Yoshi's Island (Stage 1-1 and world 1 map remix from Super Mario Bros. 3 for NES)
- Kanto: Pokémon Stadium (The Trainer Battle theme from Pokémon Gold & Silver for GBC)
- F-Zero Grand Prix: Big Blue (A theme from Mach Rider for NES)
- Eagle Land: Onett (The theme of EarthBound)
- Mushroom Kingdom OR Mushroom Kingdom II (The Fever theme from Dr. Mario)
- Special Stages: Battlefield (The theme used in Multi-Man Melee fights)
- Special Stages: Final Destination (The theme used in Event 51, The Showdown)
Sometimes, the music will change automatically (12% chance).
Normally, the trick in which you hold down A button while a stage is loading so you turn Zelda into Shiek doesn't work in Event Matches. There's an easy way around this, which is pausing the game after the Event Match has begun, holding A button down, and pressing Z (don't stop holding it down.) If done correctly, this'll reset the Match with you as Shiek. If you reset again, you'll turn back to Zelda unless you do the trick again.
If you put the language to Japenese and go into the homerun contest, you will see that the platform is smaller than the platform with any other language.
Follow the given methods.
When you play a match in Vs. Mode, you can use the Gamecube controller's C-Stick to perform smash attacks (as opposed to using the Control Stick and the A Button). Normally, these C-Stick smashes only do a minimal amount of damage. However, they can also be charged up, just as if you were using the Control Stick & A Button method. As soon as you tap the C-Stick in whichever direction you want your smash, quickly press and hold the Z Button. Instead of performing the smash attack quickly, it'll start charging up. The smash attack will then be performed after a few seconds, or until you release the Z Button, whichever comes first.
As soon as the match ends in multiplayer matches, hold X or Y (or A and B for characters with more than two victory poses) and you can select which victory pose your character performs, that is if your character won the match.
If you have a computer player on your team (so that means atleast 1 human and atleast 1 computer) then when the computer player losses all of the lives, press start on any controller in a slot. Then take out any controller and stick it in the slot of where the computer player is and press start on that controller. Switch the controller back and press start. Viola the computer person "stole" one of your teammates lives or one of your lives. It goes by whoever has the highest amount of lives gets a life taken away.
If you can manage to complete Classic Mode in less than 15 minutes without continuing on Normal or higher, you will battle both the Master Hand and Crazy Hand at the end. To get the Crazy Hand trophy, complete Adventure Mode on Hard or Very Hard difficulty without continuing.