This was a fun game, but...
The overall difficulty was easy. Other than some timing/reflex and alignment problems, it was easy to make an imaginary line to the goal. I think the main problem, which in my opinion is also a plus separating this game from the many others like it, is that there is way too much freedom.
I liked the idea of looping to save time, but most of the time I didn't need too. The maps in the game can be a little deceptive in that way. I'm sure that was deliberate though. Still, I think it would be better if you came up with some way more complex maps. Such that combine the "NEED" for looping with the timing of moving arrows around. For example, creating maze like maps with O/I objects, or blinking obstacles, to increase difficulty. That would improve the puzzle/reaction aspects greatly. soooooo good luck with that.
Other than that, good game. Cheers!