My first reaction to Final Vision was: It’s over already? I just started playing. Which should give you an idea of how short it is. Final Vision is platformer/RPG mix, meaning you kill enemies for XP, level up (you only get more HP and MP) and collect money to buy better weapons and armor to kill more bad guys, and all that in a 2d-platform environment.
The story is superficial and only barely there, I remember something about rebels or so, but that’s as far as it goes plotwise. What makes this fun to play is the core gameplay, jumping around, killing enemies, buying stuff. For those who appreciate it, there are some obvious Final Fantasy elements and that’s it. If it were a hundred times bigger and had an actual plot, it could be really great, as it is, it’s a nice diversion.