Downloaded the game yesterday and still have't finished the demo after playing for 3 ours straight (how long is it anyway..?). The game is nice, especially graphics. It's not like I have much to compare with, but I was really surprised with amount of visual effects. Anyway, there still are some problems. For example, some places (such as Raph's house) seem too dark to me, and also the game crashes for some reason when I'm trying to escape a battle.
AND! I've already sent a message on gmail, but I'm not sure that you'll even see it, so... I'd like to translate the game to Russian. If you're interested, tell me, what's the best way to contact with you :)