Tipper

Marth's tipper (right) is indicated by a bright motion trail at the tip of his sword. Roy's sword has a brighter motion trail near the hilt, indicating its sweet spot.

Again compared to Marth, Lucina's lack of tipper (left) is indicated by an even motion trail across her entire sword.

The term tipper can be used as a general term of reference for hitting with the tip of any attack, but is usually used in terms of the movesets of Marth and his clones and semi-clones, as well as the Home-Run Contest.

With Marth-based movesets

"Tipper" is typically used in reference to Marth's attacks and those of characters with movesets based on his. Marth's tippers are stronger than his center hits, as it is the sweet spot on his sword. Roy's tippers are the opposite, and are weaker because his sweet spot is at the base of his blade. Lucina, as a result of not having a particular sweet spot on her sword, has no hitbox distinction between tippers and other hits.

Less frequently, the term is also used for other sword-wielding characters' moves which may have slight sweet spot and sour spot hitboxes; for example, Ganondorf's Warlock Blade attack has a sweet spot on the tip of his sword.

Origin

Marth's tipper animation is a close match for the motion blur on the tip of his sword in some attacking animations in Fire Emblem: Mystery of the Emblem.

In Home-Run Contest

Beginning in Melee, the Home-Run Bat's forward smash has several hitboxes that each do a varying amount of knockback, with the ones on the handle dealing the least and the ones at the tip dealing the most. As a result, hitting a tipper in the Home-Run Contest knocks Sandbag the farthest, and is the usual method of finishing Sandbag, unless the character has an attack that is stronger such as the Warlock Punch. The tipper still exists in normal play, though the distinction is typically irrelevant, as the non-tipper hitboxes are enough for a one-hit KO regardless.

An aerial tipper is a tipper in which one hits Sandbag while it is still in the air. In Melee, it sends Sandbag farther than a normal tipper due to the mechanics of the Sakurai angle; in Brawl and SSB4, this has been changed to a fixed angle, removing the distinction.