Pros:
+Rewarding Upgrade System
+Reasonable Goals
+Solid Strategic Elements
+Fantastic Music by Ronnie Antares
+Tower Defense & 2D Shooter Hybrid
Cons:
-Bad hit detection
-Confusing and unclear hit-boxes make shooter element frustrating
-Slow pace
-Many questionable skills clog up the skill trees
Overall I give it a 3.6 out of 5, keep up the great work.
Hell of a game. The only problem is that some of the level-up stats work against your maximum potential score since collecting pixels increases the difficulty ramp quicker.