MAGIKARP is a pathetic excuse for a POKéMON that is only capable of flopping and splashing. This behavior prompted scientists to undertake research into it.
Sapphire:
MAGIKARP is virtually useless in battle as it can only splash around. As a result, it is considered to be weak. However, it is actually a very hardy POKéMON that can survive in any body of water no matter how polluted it is.
Fire Red:
It is virtually worthless in terms of both power and speed. It is the most weak and pathetic POKéMON in the world.
Leaf Green:
In the distant past, it was somewhat stronger than the horribly weak descendants that exist today.