It's not clear what particular game or games the vandal was offended by, but someone spraypainted the Yokohoma headquarters building of developer and publisher Koei with words like "shitty games", "garbage", and more alarmingly "die".

While many have often criticized the repetitiveness of Koei's Dynasty Warriors and Samurai Warriors series, the company is responsible for bringing a number of beloved titles to market for around 30 years, including titles like Gitaroo Man, Gemfire, and Uncharted Waters

It's also possible that the vandal doesn't hate Koei at all and was targetting Tecmo (which Koei merged with in 2009). I know Quantum Theory received some very negative revies, but I don't think it was worth defacing private property over!

[Via @sprsk]