This is your first 'Giant Battle' and a significant departure from regular combat. Mario, in the Dream World, transforms into a giant version of himself to fight a giant Bowser. The battle takes place on the 3DS's top screen, with touch screen and stylus controls for Mario's actions.

- Punch: Tap Bowser to punch him. Repeated taps for combos.
- Block: When Bowser attacks, a '!' icon appears. Swipe the stylus in the indicated direction to block.
- Fire Breath: Bowser inhales, then breathes fire. Swipe the stylus upwards repeatedly to jump over the fire.
- Shell Spin: Bowser retreats into his shell and spins. Swipe the stylus left or right to dodge.
- Ground Pound: Bowser jumps and ground pounds. Swipe upwards to jump and avoid the shockwave.
Strategy: Focus on perfectly timing your blocks and dodges, as Giant Battles are heavily reliant on action commands. Counter-attacks after a successful block deal significant damage. Use your special moves (activated by tapping icons) when available. The battle is a test of endurance and reaction time. Reward: Progress in the story and mastery of Giant Battle mechanics.