Way too short.
First off, there are only 3 - 4 battles then the game is over? That's not even enough time to get a good feel for what's going on in the game. It's made to seem like a pen and paper RPG system, but for that there's not enough variety. It doesn't really seem to matter what you put your stat points into, so that part of the game seems rather pointless. No matter whether you buy equipment or not, you are just as likely to die in one hit, which is rather frustrating.
The game took less then five minutes to beat, including dying on the first try. Overall, it was barely fun at best. If it was longer, if you could level up, and maybe had the ability to choose different classes, it would have had a bit more potential.
As it stands now, it's not so good.