Really cool!
One thing that could make the game cooler (and not as hard xP) is if the projectiles changed color or some had some other indicator to show when it will not bounce any more :)
Cool stuff.
One thing I have mentioned in another submission, as an advice for the future, is to try and make it so you can use WASD as well as the arrow keys. It has no downside most of the time and it has some benefits like being more comfortable for some and easier for some users to get used to the controls since a lot of popular PC games also use it (also in my small keyboard I have to press "fn" to use the arrow keys, which is annoying xD).
Cute game! Seems like you put a lot of work into the levels.
It is a bit annoying that you can only use arrow keys and not WASD. It is not big deal, but in my case was particularly inconvenient since I have a small keyboard that does not have arrow keys (technically it has but I have to press "fn" at the same time to use them).
Amazing game, super clever mechanic! Only real complaint is not having more levels :P
Loved the design on the levels, the last one is insane, made me supper happy when I completed it :)
I imagine you traced random patterns with the mouse and then drew the walls around them. Was that it or did you do them some other way?
BTW, found a small bug where you can lose after completing the level, you still progress but you get the fail sound and cross thing xP