More than five monsters on the field

From Glitches

From the game YuGiOh Worldwide Edition for the Game Boy Advance

Play Infinite Cards. Have space for magic/trap cards on the field, and have a monster card on the left side of your hand. After you play Infinite Cards, build up your hand until it has about fifteen or more cards. Then set a magic/trap card. The card that's on the left side of your hand should go to the field. You can't use the monsters that you play using this glitch.

Submitted by: Dustin G