Very enjoyable movie!
Honestly, I actually felt scared for the characters near the very end of the flash, which is a sign of a GREAT flash.
A word of caution, though: It looks like there's a small error in your final part of the flash when we choose an ending, where after playing that ending, it brings you back to the final scene, then REPEATS it over and over again until you close the flash, so that you can't see the two endings in a single run. It's onyl slightly annoying though, but I think you should fix it. GREAT FLASH, otherwise!