Captain Falcon's Knee Smash in SSBM
- Not to be confused with the first hit of Solid Snake's forward tilt, which can be used to perform the Knee Lock.
The Knee Smash, also known as the Knee of Justice, The Ultimate Knee, Knee of Doom, The Electric Knee, Falcon Knee, or simply The Knee, is Captain Falcon's forward aerial in Super Smash Bros. Melee and Brawl. It is an extremely powerful, low-trajectory killer often used at the end of Falcon's combos.
Overview
This move is considered among the best in the game, due to its short lag time and powerful knockback ability. Many combos and strategies for Captain Falcon end with a Knee, which deals up to 18% in Melee and 19% in Brawl, under circumstances not influenced by items or stage effects. When the Knee is at full power, it makes an excellent Wall of Pain, and can be accompanied by Captain Falcon's Down aerial for a pseudo Ken Combo.
The Knee Smash in action in SSBB
The Knee Smash has two main hitboxes. The initial hitbox, which lasts only a few frames, is Captain Falcon's primary killer and is accompanied by an electrical pulse. This hitbox is considered the attack's sweet spot, but it's actually closer to a Sex Kick. The second hitbox lasts much longer and lacks the damage and knockback of the sweet spot. Due to the Knee Smash's low lag, professional smashers can use it as a launcher into another aerial attack, often a sweet-spotted Knee Smash.
Brawl
In Brawl, the knee is much harder to land and its knockback power has decreased slightly. Its hitlag lasts about a second, much longer than in Melee. A non-sweet-spotted Knee Smash can trip a grounded opponent often.
Though Ganondorf is Captain Falcon's clone, his forward aerial is not a Knee but is instead an arcing downward punch resembling Mario's in both Melee and Brawl. However it has the same amount of start-up frames as Falcon's Knee, but has slightly less knockback, much longer end lag but only has one hitbox.