My desktop BSOD'd with the game, I managed to play with my tablet just fine. I always have my PC's set to Japanese so I'm not sure if that made a difference or not, but you don't need a JP OP to play. BOJ is far better then the old one, not to mention that it's seemed lag free the entire time playing with people in Japan.

thats not possible.. they just all had udp on... you still get delay but its smooth much like mario kart on wii.

Even so the system deals with lag far better then the older bomberman online, I saw 1 person that lagged a little bit during my time in the closed beta and it didn't effect the gameplay at all, their movement was just a little bit less smooth but still fluid and you could trap them and do everything like with someone that wasn't lagging. Nothing compared to how on the old bomberman online the person would be teleporting everywhere, and it would be impossible to play with them correctly.