Also known as: 当たり判定, くらい判定
A gameplay mechanic involving an area of an object/character used to determine collisions.
In Fighting Games, red ones usually represents that the move can deal hits and damage while other colors represents their hurtboxes or collision box.
In the Touhou games, it is represented by a small, white circle near the character's waist.
External links
- Wikipedia: "Collision detection" § "Hitbox": https://en.wikipedia.org/wiki/Collision_detection#Hitbox
- Touhou Wiki: Hitbox: http://en.touhouwiki.net/wiki/Hitbox