Capsule Spawn

Capsule Spawn is 's standard special move in Super Smash Flash 2. Sandbag picks a random item from inside himself, in the form of a capsule. After throwing the capsule it will open and dispense an item for Sandbag to use. If items are turned off, the Capsule will not dispense any items. However, they must be turned off entirely in the Item Switch; merely setting the item frequency to "Off" means that they will still appear with this move. This oddity also makes this move the only way to use items in single-player modes where items do not normally appear, such as during the battle against Master Hand.

The capsule by itself, though able to explode and dealing a powerful 32% damage when it does, is not very damaging when non-explosive at only 9%, and the startup time is slow – enough to recycle the startup sound effect from Falcon's Crest. This is not to mention that the capsule can easily be caught and thrown back. So while potentially overwhelming in casual play due to the game-changing status of items, its use in competitive play is limited at best and actively harmful to the user at worst.

Origin
In Super Smash Bros. Brawl and Super Smash Bros. for Nintendo 3DS / Wii U, Sandbag appears as a standard item himself during play. When attacked heavily, he will drop any other item repeatedly until he disappears. Bob-omb Toss references the same property.