Enter the following buttons on the main screen after pressing START on the main menu to access three special zone where you can get access to three Pokemon with special abilities; Hoothoot, Slowpoke, and Beldum:
Activate the following cheats by entering the corresponding codes after pressing START at the main menu:
CHEAT FUNCTION - CHEAT CODE Special Extension A and Beldum - Press UP, RIGHT, DOWN, LEFT, X, R, L at the main screen. Special Extension B and Slowpoke - Press UP, DOWN, RIGHT, LEFT, Y, R, L at the main screen. Special Extension C and Hoothoot - Press R, L, Y, X, LEFT, RIGHT, Y, X at the main screen.