Excitement for the imminent Japan launch of "Pokemon Go" has reached such fever pitch that government authorities and business executives are warning prospective gamers against accidents even before its release.

The National Center of Incident Readiness and Strategy for Cybersecurity (NISC) under the Cabinet Office has issued a nine-point warning full of illustrations on Twitter and Line, warning against potential trouble over the online game, expected to be launched in Japan as soon as Thursday.

"Please pass this on to people around you, especially to children, so everyone can enjoy the game, and play it safely," the center's account @nisc_forecast tweeted Wednesday night.