Rush

Rush is an ability that all fighters have that will charge over time. It charges through a meter that builds up each time an attack is used, regardless of if it connects or not, however, punches that connect will gain more than those that whiff. Charging will also add to the Rush gauge. Once activated, it will retract the fighter's ARMS and deflect any nearby ones, too. During a Rush, the fighter using it will glow with a yellow aura. After a brief pause, the player is then able to start punching rapidly, potentially doing massive damage to their opponent. The maximum number of hits and damage is determined by what ARMS the player has equipped. Numerous Rush attacks can be chained into each other in a fight with more than two players or against Hedlok. A Rush will be disabled if the player is hit by a charged ARM.

Rush can be replenished by attacking or by standing in Rush Juice. This item fills the Rush gauge slowly, yet consistently, for any player standing within its circular radius.

Super Smash Bros. Ultimate

 * Main article on SmashWiki: ARMS Rush

The Rush attack appears in Super Smash Bros. Ultimate as Min Min's Final Smash, ARMS Rush. This attack features Spring Man, Ribbon Girl, Ninjara, Master Mummy, Mechanica and Twintelle throwing punches at the opponent with Min Min's Dragon unleashing a laser upon them as a finishing blow.

Spring Man also uses a Rush within his attacks as an Assist Trophy. Unlike the Toaster Rush in, this Rush does not utilize a fire attribute.

Trivia

 * While not possible in an actual fight, it is possible to chain Rush attacks into each other to reach the highest possible damage counter, being 9999.