With very few exceptions, there are no plural forms of nouns.
There are neither definite nor indefinite articles (the, a, an).
Spelling is fairly easy because all sounds are pronounced (i.e. there are no silent letters).
Other than the subject, the rest of the sentence tends to be English word order in reverse.
Verbs usually have to be conjugated to match the subject.
It means "is."
It indicates possession or ownership of something.
It indicates that the sentence is a question.
It marks the topic of the sentence.
It marks the direct object of the sentence.
Japanese has four writing systems.
Japanese has different male and female speech patterns.
Japanese has hierarchical levels of speech.
Japanese has more than 12 different dialects.
Both Japanese and Korean languages borrowed Kanji characters from China, so Japanese people who are not versed in Korean can still read most modern Korean writing and vice versa.