Heave Ho

Heave Hos are robots (who are apparently minions of Bowser due to the engraved sticker) with flinging platforms which they hold and the fling anyone who stands on their board. They can be useful or threatening depending on where they fling the person to. They chase after their target whenever they see him/her and they are also known to run out of batteries and whenever this happens, they stop and wind themselves up again and continue their job. In SMG4, they appear in several older videos where they fling (or at least try to fling) characters up into the air.

Trivia

 * Heave Hos have sometimes been referred to as Wall-Es by some fans due to a slight resemblance and the fact that they're both robots.