NEEDS TO BE DONE......
Also I think you should be able to add your own personal touch to your monsters, like maybe the colour of the eyes, or maybe the base colour, or pattern colour of the monsters. So you could have Cerberus with black eyes or something. Just something to personalise it abit more. Get the players abit more into the game let them have fun with the monsters
Also new levels should be unlockable by the amount of S monsters you have.. So say the new level is unlockable by 8 S monsters.. I'm not sure if that's too much or too little but another suggestion; I could keep going for hours but I know haypi won't read or take Into note these suggestions so.. Ah well!
They sound good to me!