I think the game could have and very well should have been put together A LOT better. It's a good game and it has a good concept but the mechanics of the game just aren't sitting too well with me and apparently I'm not the only one who thinks so..
This could have used some kind of distance/power meter for instance. BUT the combo was a VERY nice and unique touch.(and of course a Newgrounds medal system would have been very nice as well)
Seeing how the game IS NOT finished untill all the gems are in the hands of that greedy old man I would find a way to make it MORE possible to get all the gems and keep the challenging touch at the same time. It may be difficult but it would make for an excellent game most players need something to work towards like being able to obtain all those gems if we fail to get them all the first time around. Adding a perfect score possibility would have been very nice as well, gives the players something else to work towards as well.
The music was pretty accurate for a game like this but waay too short. A never ending song with a subtle loop that can barely be noticed by naked ears would have been better and much less annoying, its not of grave importance but it's still a nice touch and not as distracting to the players.
Everything considered it's NOT a bad game, it's NOT a good game. It's a game with potential that needs to be worked on and some day mastered.
I do not the difficult of creating a game but I do know whats required. If you really want this game to get a higher rating than it's getting now work with it, don't rush yourself, become the player of your own game and put yourself in the players shoes. Be a gamer and a designer.