Download links are down, probably due to major bugs.
In the meantime you can play the update on the website.
If you see the null object error, try playing on Newgrounds with the link above.
Turn off your AdBlock to avoid errors, and after starting the game, press "F" to go fullscreen.
If the game froze, or you encountered a bug, reload the page and start the game again, it should be fixed.
Hope this helps :)