Keen Hearing. The pikmin has advantage on Wisdom (Perception) checks using hearing.

Multi-Stage. The pikmin has a flower atop its head while it has 3 or more hit points. If the pikmin is reduced to 2 hit points, the flower reverts to a bud and the pikmin’s speed is reduced by 10 feet. If the pikmin is reduced to 1 hit point, the flower or bud reverts to a leaf and the pikmin’s speed is reduced by an additional 10 feet for a total reduction of 20 feet.

Pack Tactics. The pikmin has advantage on an attack roll against a creature if at least one of the pikmin’s allies is within 5 ft. of the creature and the ally isn't incapacitated.

Standing Leap. The pikmin has a long jump of 25 feet and a high jump of 15 feet with or without a running start.

Unarmed Strike. Melee Weapon Attack: +2 to hit, reach 5 ft., one creature. Hit: The pikmin attaches itself to the target. The target takes 2 (1d4) bludgeoning damage at the end of each of the pikmin’s turns while the pikmin is attached. The target can detach the pikmin as an action.

Variant: Bomb Rock (1/day). The pikmin throws a bomb rock at a point it can see up to 30 feet away. Each creature within 5 feet of that point must make a DC 10 Dexterity saving throw. A creature takes 4 (1d8) thunder damage on a failed save, or half as much damage on a successful one. A creature made of inorganic material such as stone, crystal, or metal has disadvantage on this saving throw. A nonmagical object that isn’t being worn or carried also takes the damage if it’s in the explosion’s area.