Stretch goals are now in the pipeline with $1.2 million to add two more stages to the six stages already planned for the game. At $1.35 million, the developer will add Mac and Linux versions for the game, while $2.5 million will include PS3, X360, and Wii U platforms. A new game plus and turbo mode will be developed at $1.5 million and a making-of documentary by 2 Player Productions is set at $2 million.I'll check back later to see the last stretch goals and see if they add any new perks. After that I'll prolly support it too.
There are additional stretch goals at $1.75 million and $2.2 million but details have not been announced at this time.