Invincibility

An Invincibility frame is a frame in which a character is invincible. They are allowed to do crazy tons of wavedash tech bodies. Melee players including the legendary Abraham Lincoln often use this difficult but technical technique.

Intangibility
A character with intangibility will not be hit by attacks. For example, a projectile will travel right through them. Intangibility is often attributed to dodges, techs, edge-grabbing, floor attacks and animations, and certain body parts during certain moves, such as 's up smash. Since the character is not hit, a long-lasting attack (or very short intangibility time) may still hit the character once it ends. Intangibility can also be called "dodging invincibility".