Complete the following tasks to unlock Vita trophy rewards.

Trophy	How to unlock	Type
100% CG Unlocked	Saw all CG.	Gold
25% CG Unlocked	Saw 25% of CG.	Bronze
50% CG Unlocked	Saw 50% of CG.	Bronze
75% CG Unlocked	Saw 75% of CG.	Silver
A Stray Sheep (secret)	Cleared "A Stray Sheep".	Silver
Antinomic Dual (secret)	Cleared "Anitomic Dual".	Silver
Closed Epigraph (secret)	Cleared "Closed Epigraph".	Silver
Enki the All-Knowing	Saw all TIPS.	Gold
Gehenna's Stigma. (secret)	Cleared "Gehenna's Stigma".	Silver
Message of Oblivion Renvoir	Read and ignored a message.	Bronze
Metis, Studying That Which Lies Beneath	Opened TIPS List.	Bronze
Milky-way Crossing (secret)	Cleared "Milky-way Crossing".	Gold
Missing Link (secret)	Cleared "Missing Link".	Silver
Open the NewGate	Began Steins;Gate 0.	Bronze
Pandora's Box (secret)	Cleared "Pandora's Box".	Silver
Presage or Recognize (secret)	Cleared "Presage or Recognize".	Silver
Promised Rinascimento (secret)	Cleared "Promised Rinascimento".	Gold
Recursive Mother Goose (secret)	Cleared "Recursive Mother Goose".	Silver
Resonating Reaction Renvoir	Answered a message from someone.	Bronze
The Orbital Eclipse (secret)	Cleared "The Orbital Eclipse".	Silver
Those Who Seek Art	Opened CG Library.	Bronze
Those Who Seek History	Opened Clear List.	Bronze
Those Who Seek Movement	Opened Movie Library.	Bronze
Those Who Seek Sound	Opened Sound Library.	Bronze
To the Promised Place	100% Completed Steins;Gate 0.	Platinum
Twin Automata (secret)	Cleared "Twin Automata".	Silver
Vega and Altair (secret)	Cleared "Vega and Altair".	Gold
X-Day Protocol (secret)	Cleared "X-Day Protocol".	Silver