Please make sure you have the latest flash player, to get the latest one click HERE.

You probrably have an older verison of the flash player please look at the link above and update your flash player.

For the time being please report this in Battle City -> Kaiba Corp Support->KCVDS Bugs. Please link a screen shots and as much detail of the bug as possible to help fix the problem.

If you can't host a game on your internet connection you need hamachi GET HERE. Install the program and put the IP address at the top of the program inside the IP box when you create a duel. You can create your own network in Hamachi. Make sure your opponent is on the same network as you.

If you tried to join a game and couldn't odds are they are either behind a router or using hamachi. You must be on the same network as they to duel them and have the hamachi software GET HERE. Once your in the same network as them you can duel against them.