A simple concept
There's a lot to be said about simple games....
Simple games can do a lot for someone, be it a stress free release from work or a good time kill while your doing something else. I respect these games. I own quite a lot.
Its a great concept done in a fantastic way. although it has been done quite often it is always something fun to play and go back to. However should i do it again, i would tweak a few things.
-The movement was slightly blocky. When you released the key it stoped dead in its tracks like it was moving on a grid, Where as this isn't a bad thing per say, it would put a whole new level of challenge if the movement was more fluent, perhaps make it so when you let go of a key it doesn't stop on a dime, but drifts a bit, this would require people to react faster thus having more of a challenge.
-Speed... Its not so bad that your star was moving slow, but everything else was moving so fast. If i saw a coin or jewel on the oposite side i was on, i knew i couldn't get it. so i let it go. Maybe make it so those said coins make you travel faster, like after every ten or so. This would also help keep the game from getting to repetitive due to the laggy movement speed.
-Finally the music. It seemed a little harsh to me, here you are , a cute little star traveling through all these mean, yet still cute stars....while blasting some techno dance club remix. Now i know a lot of people like this. But it just didnt seem to fit right. Maybe give an option to change the songs.
Well that's my two cents. It was a fairly good game all and all. Ill keep an eye open for your next one.