Press and hold the A & B buttons on both controllers and press Reset. Now, on the title screen menu, press A, B and Start at the same time on controller 1. If done right, you'll enter the cheat menu.
Enter the following at the password entry screen. Please note that on the password screen there are 2 pair of numbers in each bracket, one pair on top of another. Since I cannot display the numbers like that here, I will put the passwords like this [24 61]. The first two-digit number (24) will be the upper number and the second two-digit number (61) will be the bottom number.