The players become Anil and Mukesh, and the power-up that makes you grow (aka #Sanskaar) is not a mushroom, but 'Dadi ka dahi'! The evil turtles are replaced by annoying auto-walas who refuse to take you where you want to go, obstacles in the form of bullock-carts and construction sites and there are some hilarious parodies of Salman Khan and Rajinikanth.
In fact, with the Rajini mode on, you become so powerful that you can even transcend the game through one of the green tunnels and go on to kick ass in Contra and Pacman - before returning to the actual game. Even getting your princess in the end becomes a full-on Bollywood drama, with a cruel dad having a change of heart, and a DDLJ moment on a moving train.
Enough said, check this video out for yourself!