Mild injuries.

in the episode "Box Mystery" Pocoyo said to the box "stupid box".

Some characters mumble or have anger discussions that may sometimes contain swears.

It's noted that only Pocoyo speaks, ( rarely ).

Pato is one of the characters that squeaks swears, ( cause he's a duck).

Nina speaks the language of what sound like a mix between korean, and cartoon language.

Pocoyo either says the word: yes, no, shakes his hand, doesn't say a word, or says stupid or gets angry. ( This tends to make the viewer sad, feel awed at the amount of capacity of understanding his words with just emotions and one word, or sad and angry at him).

Pocoyo rarely does get angry though.

Some scenes revolve around some tiny little freaky adventures.

Most of the time, adventures may have some friendly themes, but they do tend to get a little jumpy.

Episodes sometimes revolve around fully fledged adventures that revolve around "fighting crime" and being sometimes freaky for younger viewers. ( Though creativity lowers it ).

Characters are mostly friendly, but only one is "evil".

Whether an episode goes onto being a friendly and basic little episode or a full on super adventure across a land or "fighting crime", they'll sometimes contain a message or scenes that are frightening or sad. ( Having them in the take of sadness in rare, but some episodes may have frightening moments ).