A monster that appears in the Gem Battlefield. It attacks by charging at a Gem and sapping their health by rapidly and repetively biting them until the player removes them by rapidly tapping the screen. It takes 20 HP to defeat it.
A giant version of the Green Wasp is possible but only appears twice. It deals more damage and takes 50 HP to defeat it.
A monster that appears in the Gem Battlefield. It doesn't attack, but instead, heals the monsters 15 HP on its team and inflicts the poison status on the Gems. It could also heal itself. It takes 35 HP to defeat it.
A monster that appears in the Gem Battlefield. It attacks by shooting its strawberry at the Gems. With its strawberry, it can resist the Gem's attack. Once hit by a shield-breaking move from either Amethyst or Garnet, its defense is lowered significantly, and it becomes unable to attack for 2 turns. After 2 turns, it's straberry will emerge from the ground and the monster will pick it out of the ground. It takes 35 HP to defeat it.
A monster that appears in the Gem Battlefield. It attacks by walking up to Gems and crushing them with its front legs. If the monster unfolds and rapidly flaps it's wings, it's preparing its knock out attack and the player has one turn to stop it. If not, Green Beetle will charge at one of the Gems and ram them with it's large horn, knocking them off the field and render them unplayable for 3 turns. This attack can be stopped by killing the monster or stunning it with Pearl's Holo-Pearl attack, or with Steven's bubble sheild.
It has a giant version of itself but appears as a mini-boss only on the last gauntlet stage. It is more powerful and takes 125 HP to defeat it.