A new Final Fantasy title doesn't mean what it used to, and Final Fantasy Dimensions is another mobile port of a previously released Final Fantasy. However, you probably haven't played the original in this case, considering it was an episodic release for Japanese cell phones.

As we learned when Dimensions was announced, it is based on the Japan-exclusive Final Fantasy Legends. It apparently follows in the footsteps of Final Fantasy V, using the active time battle system and focused on different jobs for the characters. Instead of thinking of this as another mobile port, it might help to think of it as a long-lost 16-bit entry in the series (like Final Fantasy IV: The After Years). If that doesn't convince you, maybe the images below will help.