G4 has given games from KOEI some terrible scores in the past, to be sure, like this one-star notice for Dynasty Warriors: Gundam 2, for example, but we are NOT to blame for the graffiti you see above. Someone (who was NOT affiliated with G4) sprayed the above message on one of KOEI's buildings in Japan.
According to Andria Sang's translation, she spray-paint scrawls read: "Die, garbage" and "Crap game" and "Tenchu."
That last word, "Tenchu" translate to "Divine Punishment," but it could be a reference to the Tenchu series of games, too. Tenchu (the game franchise) has nothing to do with KOEI, but people who spray-paint stuff on the sides of buildings usually aren't very bright, and they may have mixed up the publishers. We can't be certain.
One thing we do know for sure: People in Japan take their games seriously.
Source: Andria Sang