Not to be confused with Star KO.
Knockout Stars are "medallions" for KOing opponents in the Versus Mode or online play of Super Smash Bros. Melee, Super Smash Bros. Brawl, Super Smash Bros. 4, and Super Smash Bros. Ultimate, displayed at the bottom of each player's character selection screen panel. The amount of KO Stars received is dependent on the amount of times a KO is dealt. For example, if a player knocks out two opponents, or if they KO the same opponent twice, they will receive two KO Stars. Melee allows players to have a maximum of only 255 KO Stars at a time. Any KOs achieved after players have attained have 255 KOs will not reward them with a KO Star. In Brawl, this limit is extended to 999 KO stars. The design of KO Stars have changed in each new iteration of the game. For instance, in Melee it was simply a yellow 5-pointed star with a tallied number to its left. Brawl added new designs for stars while getting rid of the numerical value, and Smash Wii U added even more. The stars gain more points along with colors and accents as they are tallied into groups. Smash 3DS retained the numerical value from Melee. Ultimate also retained the numerical value, showing a medallion with a star in it. KO Stars are reset to zero once the players exit the mode or (prior to Ultimate) change their name. CPU players do not earn KO Stars.