Katu 20206h
See also: GekiNot to be confused with osu!taiko's Katu. 23363d
Katu (喝), Katsu, or Beat!, is a judgement term for when a combo is completed without the highest possible accuracy on every note. However, Katu can't be achieved if a combo contains a 50 or a miss.
There are two types of Katu which depend on accuracy value of the last hit in combo. The first type is worth 300 base score points, and the second one is worth 100 base score points. The 100-point Katu gives the least amount of HP, and 300-point Katu gives less HP than a Geki.
Katu comes from the Nintendo DS game Elite Beat Agents, which osu!'s gameplay is based on.
Screenshots 6e6n28
Katu in Elite Beat Agents
Katu in Osu! Tatakae! Ouendan! 2
100-point Katu in osu!
300-point Katu in osu!
Gameplay in iNiS games 1521m
Other game modes 1f30z
osu!taiko 3uq2s
Katu is the judgement given when a player hits big notes perfectly by pressing two keys of the same colour simultaneously.
osu!catch 2j2656
Katu is counted for every droplet player failed to catch. This value is not shown on the results screen.
osu!mania 683h3k
In osu!mania, Katu is shown as a 200. It gives 200 base score points with slight penalty on the accuracy side.
Storyboard 3k3u1i
DS Games 6y2v1u
Katu triggers the second-tier on the storyboard during the gameplay, which usually shows a natural spirit during the sequence.
osu! 5u3627
Obtaining Katu triggers several events:
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Fail Layer is deactivated.
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Layer is activated.
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"ing" event is triggered, if the previous state was "Fail".