Activating this trainer:
Press F1 at main menu.
Listen for 'Trainer Activated'.
Press desired hotkey. All hotkeys can be changed on the trainer.
NumPad1: Unlimited Cells
NumPad2: Infinite Health
NumPad3: Super Speed
NumPad4: Freeze Enemies
NumPad5: Enemies Cannot Grab You
NumPad6: Blind Enemies
Freeze Enemies: While active the enemies cannot move. This might cause game crashes at scripted events.
Enemies Cannot Grab You: While active no more quick time events by enemies grabbing you.
Blind Enemies: While active they don't care about you.
Unlock more trainer options including updates from here - ECHO Trainer