It's a really nice game and I enjoyed it for what little I played, but I can't keep looking at the screen. With literally everything on Kong being white, and then this game being white with black text, it was extremely hard to keep looking at for more than a few minutes on end. I'd recommend the ability to at least change the text/background color to something.
I'd absolutely love a "speed up" button, just to make things go just a bit faster. Even with a huge speed up bonus, it still seems to take ages to advance.
This game seems a little bit buggy, to be quite honest, albeit one of the most fun games I've ever played. I personally love music, and it seems a little upsetting that it's hard to earn points by rail-to-ramp, as I seem to constantly fall through. Great game otherwise, though.
So I pretty much broke the game as soon as it started. First customer, wants to buy an item I don't have, suggest an item. And it gives me an error and crashes.
At first, this honestly seemed like a good game. But after beating the second boss[with a bit of trouble, mind], as a Psionic, the regular arena fights seemed to go from moderate annoyances to impossible challenges. I could be at 50+ health or more, and they hit me 60+ and kill me, while playing on normal. This is just extremely annoying, as without being able to defeat them, I can't gain any money in order to train my skills higher, thus keeping me in a never ending loop of lose-challenge arena-lose-challenge arena.
Frantic difficulty is definitley hard, but in all honesty if you've ever played Frantic or even Frantic 2 before, you'll know exactly what to do. For boss fights, don't even pay attention where the boss is, just focus on dodging.
Good news! Latest update adds a darker color theme to the options screen. Still kind of experimental - only works in Chrome or Firefox.