A frame speed multiplier (also known as a frame speed modifier) is a multiplier applied to the total length of an attack or period of an attack. When a frame speed multiplier is applied, the amount of frames it takes for the move to be performed is multiplied by the frame speed multiplier (e.g a move programmed to take 40 frames to be performed would take 44 frames with a frame speed multiplier of 1.1), and the animation, as well as hitbox duration are slowed down or sped up proportionally, (so a frame speed multiplier of 2 would halve the animation speed and double the hitbox duration). These are most commonly used in custom moves to slow down or speed up the move proportionally to the length of the standard variant (for example hyper voice has a frame speed multiplier of 1.2), however some regular moves have frame speed multipliers attached to them as well.
Moves that use frame speed multipliers
- Weight dependent throws have their speed change calculated as a frame speed multiplier (weight/100).
- Custom moves that boast being faster or slower than the regular variant often use frame speed multipliers.
- Many other moves have frame speed multipliers attached to them.