Haven't you guys ever read warnings and disclaimers before?
The Wii is an electronic appliance and should be discarded accordingly - not with the burnable trash or the biodegradable trash. Most manuals should contain a similar warning.
The plastic bag picture is a warning that it's not a toy and can pose a choking hazard. You'll see a warning on almost any plastic bags containing electronics.
As for the clover, it's obvious that it's a warning not to stick shit in the vents, be it plants, your penis, or your grandmother.
There's really nothing weird with this. They obviously included pictures rather than text only so that even simpletons can understand. I guess they haven't considered GAF.