A few days ago we reported on the unfortunate news that lag was present in the online modes of Super Smash Bros. for Nintendo 3DS. The problem doesn’t seem to be universal, and when it does affect gameplay, it seems the amount of lag is directly proportional to the number of people playing. Super Smash Bros. creator and director Masahiro Sakurai has commented on the issue, stating that it’s mostly due to connection speeds, not the game itself. However, some lag was noted during development, and Sakurai and his team came up with some ways to avoid it.
“Connectivity can depend heavily on location so I really don’t know what to say. At the very least, we’ve confirmed that smooth play is possible under various conditions of external networks. During multi-player, you’re connected with another player and sending light amounts of data back and forth, so if the game feels laggy, it’s due to the connection speed. If you play when it’s laggy, then the person you’re playing with will experience the same lag, so it’s best to play when the connection is clear. During development, there were cases where we had too many people and the connection became sluggish, so we turned off our cell phones and the connection would clear up. It’s best to avoid playing while streaming something or by a tethered connection. Free wi-fi spots are probably not very good either.”
— Masahiro Sakurai