Hard difficulty...
	Secret Trophies...
	Stage 5...
	Stage 6...
	Stage 7...
	Third ship...
	Trophies...
	Very Hard difficulty...

Successfully complete the game under the Normal difficulty setting.

Complete the following tasks to unlock PlayStation 3 trophy rewards.

Trophy	How to unlock
Can't hide from me ( Silver )	Shoot down a rare enemy.
Not that difficult after all ( Bronze )	Complete the seventh stage ('Van Krist Labs') at any difficulty level.

Collect at least four keys from any stage.

Collect at least four keys from any three stages.

Collect at least four keys from stages 1 through 6.

Complete the "Assassin" challenge.

Complete the following tasks to unlock PlayStation 3 trophy rewards.

Trophy	How to unlock
Action Fan ( Bronze )	Clear challenge "Action Fan".
Chain Expert ( Bronze )	Clear challenge "Chain Expert".
Challenge Master ( Gold )	Unlock and successfully pass 12 or more challenges.
Collector ( Bronze )	Clear challenge "Collector".
Key Explorer ( Silver )	Collect all 35 secret keys.
Lucky Number 7 ( Bronze )	Collect an accumulated total of 77777 chain rings.
Piece of rock ( Bronze )	Complete the third stage ( "Ethia Ruins") at any difficulty level.
Profiler ( Bronze )	Clear challenge "Profiler".
Rating Expert ( Bronze )	Clear challenge "Rating Expert".
Ready for the junkyard ( Bronze )	Complete the first stage ( "Zeus Sector") at any difficulty level.
Survivor ( Bronze )	Clear challenge "Survivor".
System liberated ( Bronze )	Complete the fifth stage ( "Turady Deep Sea") at any difficulty level.

Successfully complete the game under the Hard difficulty setting.