"Tip: don't restart to get a perfect score if one or two enemies make it through. On most levels you still get three stars if only one or two enemies made it through."
I know...But my OCD requires me to rage quit and start from scratch!!!!!!
Things that work for this game: The way you unlock characters, the diversity of the characters, and the map. Things that need to be added/improved: The story (there's so much potential here!), the graphics (pixels, really?), and the skill cooldown timer (you should have an individual timer for each skill)