Roma Heta

A fanmade Axis Powers Hetalia RPG game/animation which is one of the more famous ones. However, it is discontinued due to the creator not liking the fact that fanart of the game was getting more popular than fanart of Hetalia itself.

Japan creates a new video game. However, an error happens, the error becoming sentient (taking the form of a doppelganger of Japan) and sucks characters into the game. The error is slowly trying to trap them in the game, and sometimes uses his powers to 'infect' people with a virus, causing them to come under his control.

Subbed videos can be found here and here.

Roma Heta contains examples of:

 * AI Is a Crapshoot: Well, the beta program is, anyway.
 * Big Bad: The Error AKA Black Kiku.
 * Bigger Bad: not yet revealed, but strongly hinted there is one.
 * Brick Joke: America jokes that Russia could be the final boss of the game. He isn't, but he is one of the main reccuring villains.
 * Church Militant: The Italy Brothers.
 * Face Heel Turn: Russia and
 * Five Man Band: The same dynamics for the Allied Nations in the series minus Russia.
 * The Hero: America of course. He has hero class and is the well balanced fighter
 * The Lancer: England. The Archer and the Black Magic user.
 * The Smart Guy: France. The healer of the group.
 * The Chick: China. The one that increases stats.
 * Journey to The Center of The Mind:  and   does one to   mind.
 * Light Is Not Good: The Italy Brothers prove that in their battle.
 * Mission Control: Japan as he's the only character that can't enter the game world.
 * Actually, he can enter and leave the game world at will. So it's more like he (and everyone else that isn't stuck in the game) is this because they aren't trapped.
 * Not So Harmless:
 * Red Eyes Take Warning: Black Kiku has red eyes contrast to Japan who has brown.
 * Role Playing Game: The actual gameplay and the game Japan makes making this a turn based fantasy RPG.
 * Ship Tease: Hungary seems quite concerned about Austria's well being...
 * There are also Germany/Italy and Spain/Romano hints more apparent in the battle with the Italy Brothers.
 * Stripperiffic: England's angel costume, France wearing nothing at all and Switzerland's dress.
 * Taking the Bullet:  takes the attack that was meant for   after   beats the group.
 * Wham Episode: The Italy Brothers attacking Germany's group and
 * You Should Know This Already: The battle with the Italy Brothers. It's one of the most memorable scenes in the game and there is A LOT of fan art of Italy and Romano in their priest outfit.
 * Color Coded for Your Convenience: Subverted. Japan wears black, while Error wears Japan's white naval uniform.