In Super Mario GameBox Demo, Sand Whomps are rare enemies. Their name implies that they are Whomps made of sand. However, they are solid. One appears in Mushroom Desert as a mid-boss. The final 4 appear in the ruins area of that level.
Like most Whomps, they have an X-shape of bandages on their back. A ground pound must be executed on the bandage. Sand Whomps are quicker to get up, raising the difficulty. They can be easily defeated by rolling under them, then roll-jumping into the bandage. A glitch done by jumping through the Sand Whomp (à la Super Mario 64) makes defeating them even easier.
- Untrue to their appearance, the bandage is not covered with sand.
- There is a hilarious experimental thing you can do to them in the Enemy viewer. Tossing an apple, a rock or a splash of water at the bandage will make the bandage fall off.