[Hatredcopter]

The one I always went to when I lived in Nagoya was Urban Square in Osu. Go to Kamimaezu Station and take exit 9, walk down the street a bit and there's a stairway that leads up to it, you should see orange signs from the outside, it's above a Mister Donut. It's a fairly big arcade (three very large rooms with all the popular games). Alternatively you can find another entrance to the arcade on the Kamimaezu side of the covered shopping streets in Osu.

There's also the Taito Station arcade by Nagoya station (it's around the corner from the Meitetsu building), but that one is a bit too crowded for me. I know there's a couple other big ones near Kanayama, but I haven't been to them.