Hopper Attack MS

Name Change
Einstein MS was released by Hasbro as Hopper Attacker.

Bit Protector (BP): Heavy Metal Emblem
The Bit Protector of this Beyblade is Heavy Metal Emblem. It is the first mould verson of Bit Protectors.

Attack Ring (AR): Metal Spring
Metal Spring is a triangular shaped AR. Its ABS caul is in the center with the metal around the edge, which means that the metal is the part in contact with the opposing beyblade for the most part. The edges of this beyblade are jagged, though they don't extend far. There are also three "heads" that allow for some Smash Attack, though it also results in some recoil. This AR is also very small, and although it isn't very heavy, it can work well in compact customizations, especially more aggressive ones; this being said, Jiraiya MS's AR, Jiraiya Blade outclasses Metal Spring by being 6 grams heavier, more compact, more effective Smash Attack.
 * Weight: 16 grams

Use in Smash Attack Customization
Metal Spring has many small extensions that allow for Smash Attack and although it can have some recoil, a rubber flat tip can help reduce it. Here is an example:
 * AR: Metal Spring (Einstein MS)
 * WD: Circle Wide
 * RC: Grip Flat Core (Dragoon MS)

Use in Compact Customization
Metal Spring is also small, which allows it to be used in Compact customizations, and although it is very outclassed by Jiraiya Blade (Jiraiya MS) and Metal Ape (Magical Ape MS), it can be viable in more aggressive compact customizations, when Jiraiya Blade is not available and where Metal Ape (Magical Ape MS) doesn't perform as well.
 * AR: Metal Spring (Einstein MS)
 * WD: Circle Heavy
 * RC: Metal Change Core (Death Gargoyle MS)

Weight Disk (WD): Circle Heavy
See Circle Heavy.

Running Core (RC): Spring Core
This RC is very tall and has a spring inside that lets the tip bounce on the launch. Its tip is a plastic semi-flat. The RC is not only tall, but it moves itself into a position where it is easily hit by Attack-type Beyblades. Because of its height and the separation between the two halves of the RC (which causes the tip to stray from the axis often), this RC has very bad balance. So, this RC has no competitive use, but can be fun to use just for the gimmick.
 * Weight: 3 grams

Other Versions

 * Einstein MS - HMS Fukobako Lucky Box 2004 Booster Version (Light Blue)
 * Einstein MS - HMS Random Booster ACT 2 Version (Fuschia)
 * Einstein MS - Tournament Limited (Dark Green)
 * Einstein MS - Coro Coro Limited (Gold)