http://xbox360cheats.info Superman Returns: The Videogame cheat: Breaking The Sound Barrierwhile Flying As... Feed 2012-05-24 en http://xbox360cheats.info/Superman-Returns-Videogame/Xbox-360/22252.html the sound barrier While flying as Superman at hyper speed, he goes through stages where after an amount of time of continuous flying he gains a burst in speed. He accelerates and becomes fsater and faster.

If you fly for long enough (flying a lap or two around the enitre city above the sea is recommended), he eventually breaks the sound barrier.

It is about the fourth jump in speed. You will know this has happened when the suond of him ripping through the air is suddenly silent. This is bceause Superman is traveling faster than his own sound.]]>