Pros:
Modern Style RPG
Cool weapons
Neat Backround graphics
Neat enemy Graphics. (Especially the Hippie)
Good music
Good storyline
Cons:
Not released in America
Text based battle system. (I like those ones where you can see your characters attack the enemies, and the fact that you need to read how much damage one character took gets kind of annoying)
4 characters, but you can only use 3. (oops....)
All in all: The NES game was released in Japan, but the RoM is ready for download! You should really play it, but it doesn't seem to have anything to do with earthbound. Maybe in a future earthbound game they'll have one explaining what happened to Giegue. 9/10