Square Enix's net sales were up 11% year-over-year in its fiscal Q1 (which ended June 10), from ¥29.4 billion ($341.5 million) to ¥32.5 billion ($378.2 million). It's a phenomenon that president Yoichi Wada attributes to the million-plus copies sold of Dragon Quest Monsters Joker 2 in Japan, and continued sales of Final Fantasy XIII and Just Cause 2 in the west.

Operating income jumped 814% in the same period, from ¥594 million ($6.9 million) in Q1 2009 to ¥5.43 billion ($63.14 million). That can be attributed to the fact that Square Enix didn't buy any major publishing companies this year.

The earnings presentation for the quarter (PDF) lists the company's current publishing plans for the near future, including the surefire Wii hit Dragon Quest Monsters Battle Road Victory for Japan only, as well as the Parasite Eve sequel The 3rd Birthday with a "This Winter" date in Japan and a "TBD" date in North America and Europe. The slides also reveal that Square Enix will handle Japanese publishing duties for Call of Duty: Black Ops, like it did for Modern Warfare 2.

This article was originally published on Joystiq.