SPD-Down

SPD-Down is a status effect that can hamper your Speed, hence the ailment's name. It is the opposite of SPD-Up, which increases your Speed. It appears in the Mario & Luigi franchise only. Blue streaks going down or a blue flash with a downward arrow may mark the ailment. Enemies may be hit if ambushed via the hammer, but only in the first game's 3DS version.

The Blue Virus can inflict this status effect in Mario & Luigi: Dream Team.