try to draw specific unit only, and aim just for the enemy area. (no need to attack enemy units)
when engaging the boss, there's actually a trick. for example, try to summon the exact stronger enemy in the corresponding line, but don't march them. just wait. the boss will die by itself.
well, we actually intend to make this a fast-paced-drawing game. but the category that fits most is strategy game. well, this is what we thought. do you have any suggestion?
thank you very much for the critics & comments. actually this game is our first time using mouse gesture technology, so we haven't got enough user experience information. looking forward for new c&cs! :)