I found Neutopia to be slightly more than sufficient. Good game in some aspects - not so good in others. It's a pretty..
I found the graphics to be average to below average the TG-16. The game play was kind of annoying at times, but all in all pretty good control. The collision detection on horizontal attacks was bang on, but the collision detection on vertical attacks was a bit frustrating at times.
Some good points were the many hidden bonuses and places to explore - they were literally everywhere which was cool, however many times youd uncover a secret place just to talk to someone who had something of zero value to offer you. The idea of going to different Realms or Labyrinths was pretty cool.
All in all, if you're looking for a game to pass the time, or to just try something new because you're a fan of the genre, by all means, check this game out. Certainly worthwhile - a good one to two nighter.