Kirby (SSB)/Up tilt

Overview

The hitbox of Kirby's u-tilt.

Kirby does a vertical kick. It is widely regarded as among the best attacks in the game, and maybe even the series, due to dealing high damage (14% clean, 10% late), quick speed (hitting on frame 4 and being only 16 frames long, which is extremely fast and hard to counter), ability to break shields via repeated use (which is very possible due to the quick speed), ability to combo (can chain into itself for up to 60%+ depending on the opponent, and easily lead into other moves such as aerials), good KO power at very high percentages, and a ridiculously disjointed hitbox that covers the length of more than one Kirby both horizontally and vertically - this move by itself is considered the main reason Kirby hard counters Yoshi, as it outspaces all of his reliable approach options.