SCORCHER MODE
When the Takara code appears press Right, Left, A, B, Down, A, B and Up. If you have input the code correctly, you will hear a "clink" sound. The Scorcher mode allows you to blast your opponents with your charater's Super Attacks at any time, use Zeus as a character, and allows you select fighting styles (like in versus mode) in Training and Tournament modes.
JET MODE
When the title World Heroes Jet 2 appears on the screen press Up, Up, Select, A, Down, Down Select and B. If you have done it correctly you'll hear a "boom." This mode allows your character to move twice as fast as normal.