This is not a game, this is a scam! Over 60% of the tapjoy offers are scams, contacting tapjoy was useless of course as they intended to scam, yet contacting the game developer didn't help either even with all the proofs! Even if you avoid tapjoy offers this game is still nonplayable due to all the glitches: 1) many nitro's missions cannot be completed as the defeated bosses won't die; 2) still no ending to single player campaign after 2 years; 3) frequency crashes when opening your backpack