Math Blaster Episode II: Secret of the Lost City is an educational game for learning math in 4th grade. Re-released in 1997 as Math Blaster: Ages 9–12 and 1999 as Math Blaster for 4th Grade respectively.
In the plot of this math game, the evil Dr. Minus shoots down Blasternaut, Spot, and Galactic Commander as they search for the Lost City in their Galactic Cruiser. They crash, thankfully, next to the Lost City. Dr. Minus' 'Negatrons' try to stop them as they unlock the secret of the Lost City to save Galactic Command
