All 8 main story missions completed.
1000 criminals killed.
Fully upgraded a Cop.
600 criminals killed.
All criminals arrested in at least one level.
400 criminals killed.
Level completed with no damage.
200 criminals killed.
100 criminals killed.
Finished a level without losing any Cops.
All game missions completed in Nightmare Mode.
All game missions completed in Hardcore Mode.
All game missions completed in normal mode.