Claims titles such as Pokemon feature themes of animal abuse.
PETA, a foundation which campaigns for the ethical treatment of animals, has released a parody game called Pokemon Black and Blue, available to play in your browser.
PETA claims that Pokemon Black and White 2 paints a rosy picture of what amounts to thinly veiled animal abuse, but the new browser game will give kids a chance to help Pikachu and his Pokemon pals fight their cruel oppressors and gain their freedom.
"Games such as Pokemon send kids the wrong message that exploiting and abusing those who are defenceless is acceptable when it's not," says PETA director of marketing innovations Joel Bartlett. "But with Pokémon Black and Blue, children can experience the great feeling that comes from saving others from harm."
Pokemon Black and White 2 will be released on Friday.