It is a nice game but I loose interest overtime because of the difficulty to earn the game currency. Every time you fail a level it just gives you average of 30 which can be doubled by ads. Because of this, since you have upgrade something to pass the level, one has to fail several times then have to wait for the lives again. This makes it less enjoyable. Is it possible to have like atleast half of it instead of 30 and if even better if the whole amount earned?