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The Superguard is a move used in Paper Mario: The Thousand-Year Door. It is a more advanced version of a Guard. It stops any attack from doing any damage at all, and any direct-contact moves will be returned to the attacker, costing the enemy one HP of damage. This counterattack damage does not stack with other counterattack effects such as being electrified. On indirect-attacks, the Superguard will simply negate all damage, with the exception of a Pokey's body segment throw attack, which will send the body segment back to the Pokey and cause the same amount of damage the attack would've done to Mario or his partner. It will also block any status effects from an enemy attack. X-Yux's immobilizing ability can only be blocked by a Superguard. The counter-attack effect of the Superguard does not work on the Armored Harriers. Neither Mario, his partner nor the Iron Cleft that hit them will take any damage, presumably to force the player to acquire Yoshi to defeat them. There are only two attacks in the game for which the player cannot Guard or Superguard against: Bonetail's bite attack and an explosion from either a Bulky Bob-omb or a Bob-ulk. Additionally, in the Japanese version of the game, none of the Shadow Queen's attacks can be Superguarded.
Despite being incredibly useful, it is even harder to execute than a Guard, requiring a press of 3/60th of a second (3 frames) before contact compared to a Guard's requiring a press of 8/60th of a second (8 frames) before contact. If done correctly, Mario or his partner will spin around and words will pop out next to them saying "GREAT" in orange, compared to just guarding, Mario or his partner will just retain a ducked position, and the words say "NICE" in blue.
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