This is likely just some great Japanese humor. The creator of this label discovered a good way to avoid manufacturing poor English: use illustrations. The label, which is most often associated with pirated cartridges, gives guidance to gamers. The first three illustrations make perfect sense. The fourth, however, makes you wonder, and laugh.

Avoid extreme heat; Don't put under pressure; Don't get wet; What!?

Did this common pirate label originate with Seta? It's not for sure, but the label appears on at least one of Seta's licensed games: Hon Shogi.

The famous label on Hon Shogi.