Ready 2 Rumble Boxing

Throughout the fights in the game, there is a special RUMBLE meter which fills up, one letter at a time, until the word RUMBLE" is spelled at the bottom of the screen. Letters can be obtained by successfully landing hard blows or taunting the opponent. Once the meter is full, the player can power himself up, enabling access to a special move called "Rumble Flurry", which might as well instantly knock the opposite player out cold.