Straightforward and polished

Nothing new or experimental really, but the puzzle is a good one and you have polished it considerably. I felt like the arrows were backwards (but only when I was looking at the swap button instead of the numbers, heh, hard to make that feel right to everyone), and I almost quit when I got stuck in a "just three swapped" loop. Due to randomness my "easy" level was harder than my "hard" level. On the hard level all but two of the flips were non-contiguous so it was super easy. XD I would recommend a test for contiguousness to make the difficulty more accurate.
Anyway good graphics, decent music, and nice overall design and polish. Good work.

Expandable

Finished in 83 moves. It's really simple.

We need more details.

I have absolutely no clue what the object of this puzzle is. You give no instructions whatsoever. Just tell us what the goal we're tring to accomplish is and your score from me will change dramatically.

It's alright

It needs music and some levels of difficulty.

Very hard!

Man, it' way hard, you could've made better graphics though. It was very great even though I got stuck on the final 3 numbers :P