In the Dragon Valley stage, you find a lantern next to a pillar with a skull printed on it. Stand next to it long enough, and the lantern will start flickering. Eventually, some fan with nothing more important happening in their life realized that the lantern was flickering in Morse code, and they deciphered a message ... in Belarusian. That's already a ridiculous amount of encryption for some video game clothes, but it's not over. After a quick trip to Google Translate, it turned out that the message was just telling players that a puzzle existed.
"Y-O-U A-R-E W-A-S-T-I-N-G Y-O-U-R T-I-M-E"
Elsewhere on the map, there's a temple with 20 lanterns in the ceiling, which turn on or off in a random order when you throw any one of seven tiny switches hidden in the level. These switches, by the way, are so small that they're difficult to spot, and very well-hidden -- one of them is inside a tree that can only be accessed by helicopter, after blowing up the tree with explosives.
That's not the only thing about this that blows.