Excellent game up to level 20 but am unable to continue cause of multiple bugs on that level first attempt wave one never ended. Second attempt all spell animations lightning flash and so on stayed permanently. Last attempt Wave 3 Wouldn't start even after 5 minutes.
From level 1-14 it was a fun and challenging game would have rated it 4 stars after playing the 15th level for 3 hours before giving up since the edges of the spikes are not visible so you just have to guess where they are there is a half second delay between when you tel the ball to go a way and it actually does you don't have half a second to spare trying to hit the switch in lvl 15 im thinking 1 star.