The different Japanese writing systems each have their purpose. It's a bit like asking "Would uppercase-only be accepted?" when translating to English. It dep

The different Japanese writing systems each have their purpose. It's a bit like asking "Would uppercase-only be accepted?" when translating to English. It depends what you're translating, but in general if you only use a small subset of a language's writing system you're not going to come across as a complete translation.