This game has potential. the look and feel great, with sound and better mechanics it would be very very good. Improve the HUD to make is clearer how the player is doing, also the screen froze once when I went too far right. 

This is a pretty cool concept, it definitely needs some music and sound effects though!

This is a game of many strengths and weaknesses. Firstly, the aesthetics for the game is great, although it could use nice music and sound effects. For example, when the player hits the triangle, there could be a nice sound for feedback. The lack of level design certainly detracted from the game's enjoyability. 

P.S. There is an easiest and best way to beat every level - to camp at the side and shoot many balls until one rebounds off the ceiling and hits the triangle.