Under rating threshold (hideshow) 1. Add spell hotkeys. I cannot emphasis this suggestion enough. You might call it a demand. 2. Toggle sound should be split into Music/SFX. 3. Add a level after the completion of the main 15 level, an extra 16th endless attack level. It will satisfy many people's request for difficulty, plus it adds another API category to track. Can't wait for the sequel, honestly! You got my 5/5, although I see great potential for even more features and improvement! Keep up the great work!