“Spoinkbounces around on its tail. The shock of its bouncing makes its heart pump. As a result, this Pokémon cannot afford to stop bouncing - if it stops, its heart will stop.” – Pokemon Ruby
Spoink is another cute Pokemon with a sad Pokedex entry. While the Pokemon Sapphire entry is a lot more tame, commenting on Spoink’s quest to find a bigger pearl, the Pokemon Ruby entry tells us that if it stops bouncing, this cute little pig will die. It almost makes you forget its evolved form Grumpig uses its psychic powers to control its foe's minds.