Cat vs Unicorn

fails to load

The cursor icon doesn't show, it's crazy to try to play on blind hit/miss click, especially if enemies are coming...

This is terribly imbalanced. By stage 3 you have 50 mobs and not enough possibility to shoot often enough, specials do so little damage the direct hit doesn't kill basic mobs, no monster descriptions of +s and -s. Play more TD, then redesign difficulty, and map arrangements and tower ranges and upgrade trees.
You've got more in you than this.

On several levels, the icons for the spells cover up the icons for building a unit type at a location.

The UI is too small, almost unreadable. The gameplay is decent, could use some more variety. If you fix UI/scaling issues this could be a good game.