Super Hard Mode: In VS COM mode, move the cursor to HARD MODE. Hold Select, and press A for the S-HARD (S-MODE)!
Intense Mode: In VS COM mode, move the cursor to S-MODE. Hold Select, and press A for the INTENSE (V-MODE)!
Jigglypuff-less: On startup, while it shows Pikachu, press Left, A, B, up. Now, when you get a Chain or Combo, Jigglypuff won't stop time for you!
Increase Max Speed: On startup, while it shows Pikachu, press B, A, Left, Left. Now the maximum speed has gone from 50 to 99!
More Records: On the Records screen, hold Select andpress A. Now you have more stats to view!
High-Scores Eraser: When looking at High Scores, press Select for the option to delete scores!
Extra Options: When in the Options, hold Select and Press A. Now you have more Options to choose from!

Gameshark Codes

Stop Timer 91006bc8
Max Score 913f42c8 914243c8 910f44c8
Level Modifier Replace xx with: 01 thru 32 01xxfdde
Game Speed Modifier (The Rate The Pieces Move) Replace xx with: 00 (Doesn't Move At All) thru 63 (Insanely Fast) 91xxa6ce