On the super FireTV in multiplayer mode

Play the game with my son or sometimes with the whole family in multiplayer mode, thanks to 2 controllers, 1 FireTV remote control and even the Sony TV remote control also four possible. I wish, however, now a few more routes and the opportunity to ride computer opponents in multiplayer mode. We have bought the starter kit for a mere 5 euros, worth in the game anyway. After that however, it is troublesome to get enough money for autotuning together. One should also urgently activate the parental control, since children usually quite fast times just to buy things - are just a few clicks ...