Free apps sell your use as a product so others companies buy the app of them. This guy would earn nothing for his time, effort and skills giving idiots like Kael a free game.
Upgrading the special attack increases its recharge rate - for the Cat the frenzy lasts untill the bar is 50% recharged. This means that when you upgrade the special it actually lasts less time and DECREASES your damage. This needs a fix (+) so the developer sees.
This is actually illegal in the UK and the USA as "those providing oppurtunities to gamble with legal tender must make every certainty that the player is of the legal age to do so". Flagged and reported.
The weapon at the start makes far too much difference in the difficulty - Axe is the best, Daggers are useless, the Save Game pad where you get Fire doesn't save at all and usually you get killed in the first room of the second dungeon
Mana for your stun attack/ magic attack when you hold down the mouse button.