Souzoujou: Kato's Excellent Adventure

Sentient NESs and random Pokeballs have invaded 19th century Japan! The wandering samurai, Kato, has taken up the quest of ridding Japan of these beasts! Let fly your sword (that somehow always regenerates in your hand immediately after throwing it) at these wicked beasts and save your homeland from the threats of modern entertainment! Tread carefully, though. The true danger lies in the lack of a proper and functional main menu!

...or don't. There are other virtual worlds that are far more in danger than this one :)