Do the symbols at 1:30 in that video mean anything?
Screenshot: 
Someone here on deviant art claims to have a translation for all the symbols. By that reckoning the word above is "SUCESSFULLY" (sic), and the full message is as follows:
Greetings listener, you now have sucessfully unlocked our code. Thank you for ta ting thu time to do that as a re-ward: you shall re-cieve a treasure that suits your extra ordinary a bil ly ties. Please contact us through listener at the fat rat dot com to claim your re-ward, thank you ver ry (very) much.
It actually reads , thank you for unlocking the coded message and taking the time to listen to our song. a friend studed that hyrogliph she's book's full of it , she unlocked it on its release she's named master 3 keys online she will tell you what its full message is i forget now , but the fat rat is basically thanking you for taking the time to listen .