Read this if the game doesn't load.
The Game has a little bug. Please read the bug fix trick underneath the game (right below the game)
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The Bug and the Fixes
The Bug: The upgrade option keeps blinking and you can’t see what is happening there.
The Fixes: Just click on the first upgrade option 5 to 6 times and then click the Play button. Next time when upgrade menu appears, it will be fixed itself.
Flight or Paper Flight Hacked
Earlier we published the normal version of the Flight game, and here is Flight Hacked (aka Paper Flight Hacked) game in which all the upgrades are free for you.