General Information:
Release Year: April 2004
Retailer: General Release (Toys 'R' Us, Kay Bee, Wal-Mart etc.)
Price: $6.99 (Depending on Retailer)
Transformation Difficulty Level: 2
Accessories: Drill, Gun, Energon Star

General Information:
Release Year: October 2004
Retailer: General Release (Toys 'R' Us, Kay Bee, Wal-Mart etc.)
Price: $6.99 (Depending on Retailer)
Transformation Difficulty Level: 2
Accessories: Energon Weapon, Energon Star

General Information:
Release Year: October 2004
Retailer: General Release (Toys 'R' Us, Kay Bee, Wal-Mart etc.)
Price: $6.99 (Depending on Retailer)
Transformation Difficulty Level: 2
Accessories: Energon Claw, Energon Star

General Information:
Release Year: February 2004
Retailer: General Release (Toys 'R' Us, Kay Bee, Wal-Mart etc.)
Price: $6.99 (Depending on Retailer)
Transformation Difficulty Level: 2
Accessories: Blade weapons x 2, Energon Star

General Information:
Release Year: March 2004 (online), most likely April 2004 in stores
Retailer: General Release (Toys 'R' Us, Kay Bee, Wal-Mart etc.)
Price: $6.99 (Depending on Retailer)
Transformation Difficulty Level: 2
Accessories: Missile x 1, Missile launcher x 1, Scope/Weapon half, Exhaust pipes x 2

General Information:
Release Year: November 2003
Retailer: General Release (Toys 'R' Us, Kay Bee, Wal-Mart etc.)
Price: $6.99 (Depending on Retailer)
Transformation Difficulty Level: 2
Accessories: Energon chip, Missile, Missile launcher and cannon weapon