Since it is a PS3 title, your options for playing Ascension are:
Most "Ascension for Android" downloads are actually God of War: Ghost of Sparta or Chains of Olympus with custom textures, skins, and start screens made to look like Ascension . How to Play God of War on Android (The Real Way) Since it is a PS3 title, your options
If you truly want Ascension on Android, you are looking at PS3 emulation, not PSP emulation. Since it is a PS3 title