Model No. M2-RAY-0
Head: Plasma Laser
Right Arm: Tracking Laser
Left Arm: Homing Laser
Legs: Stalker
Medarot 1, Medarot 2, Medarot R, Medarot 4, Medarot Navi, Medarot 2 CORE, Medarot 1 (manga), Medarotter Rintarou, Medarot R (manga), Medarot (anime), Medarot Card Game, Medarot OCG, Toys

Rollstar (ロールスター), english name Stingray, is a RAY-type Medabot that first appears in Medarot 1. Its design is based on a crayfish.


Rollstar is a bright red Medarot with a lobster/crayfish motif. It has wheels on its feet (hence the "Roll" in its name), and can fire lasers from its claw-like hands.

The name comes from a combination of "roll" and "lobster", but the name is always spelled "Rollstar" when printed in English in Japanese media. (-star and -ster are written the same way in Japanese.) Though it obviously takes inspiration from lobsters, it's officially listed as a crayfish Medarot, which gives it its RAY model number. 

The English name Stingray comes directly from the model number. The name is also spelled Stingaray on some merchandise.

In the games

In Medarot 1

It is used by Hikaru's rival, Yuuki.

In Medarot 2

It must be traded from Medarot 1. Hachiro has Hoppingstar in this game.

In Medarot 2 CORE

Hachiro has Rollstar instead of Hoppingstar.

In Medarot Navi

Rollstar is once again used by Yuuki. You get three of his parts in the clusters.

In the anime

Rollstar is used by Nathan. He and Ikki's Metabee fought together with Kikuhime's Peppercat and Arika's Brass.

Related Medarots

RAY-type Medarots
RAY-0 Rollstar
RAY-1 Hoppingstar
RAY-2 Diststar
Shingata Solates