In boxing, a knockdown (KD) is when a boxer gets tired enough to fall down to the mat (in the Punch-Out series's case, when the stamina bar is empty). The referee begins to count, and if he reaches 10, the downed boxer will lose by knockout. However, the downed boxer can get back up and continue the fight. In the Punch-Out!! series, if a boxer is knocked down three times in a single round, he will lose by technical knockout. Only two opponents in the series are guaranteed to lose the first time they are knocked down: King Hippo and Doc Louis. In rare cases, it is possible to knock an opponent down (though not necessarily out) in one hit no matter how much stamina he has. Punch-Out!! for the Wii has 42 known methods for a one-hit knockdown; an example from Contender Mode consists of using an uppercut on Von Kaiser while he is stunned.
| Punch-Out!! series | |||||||
| Games | Main | Arcade: Punch-Out!! · Super Punch-Out!! · NES: Punch-Out!! · SNES: Super Punch-Out!! · Wii: Punch-Out!! | |||||
| Spin-Offs | Micro vs. System: Punch-Out!! · Arcade: Arm Wrestling · Wii: Doc Louis's Punch-Out!! | ||||||
| Crossovers | WarioWare · Super Smash Bros. (Brawl · Nintendo 3DS and Wii U · Ultimate) | ||||||
| Circuits | Recurring: Minor Circuit · Major Circuit · World Circuit One-offs: Dream Circuit · Another World Circuit · Special Circuit | ||||||
| Terminology | Block · Dodge · Duck · Knockdown · Knockout · Technical knockout | ||||||