The overall game is simple yet fun, the different obstacles prevents premature boredom out of repeating challenges. The art is cute and pleasing to look at. The music is also great and perfect for the atmosphere. It's quite enjoyable to play, trying to aim for the highest score posisble.
Altough, for my personal opinion, the attack seems a bit too slow, having a delay between the click and the projectile spawn. The speed of the projectile is also quite slow, rendering me to preemptively fire and unable to quickly dispatch an obstacle immediately.
Personal tastes aside, the game is great and is fun.