Infinite ammunition: 
Complete the Fallen Angel level on the 
"007" difficulty setting with the highest score.

Power guns: 
Complete the Flashpoint level on the "Agent" or 
"007" difficulty setting with the highest score.

Power goons: 
Complete the Russian Roulette level on the "Agent"
or "007" difficulty setting with the best time.

Quiet bond: 
Complete the Villa level on the "Agent" or "007" 
difficulty setting with the highest score.

Invincibility: 
Complete the Meltdown level on the "007" difficulty
setting with the best time.

All weapons: 
Complete the Turncoat level on the "007" difficulty
setting with the best time.

Shooting Accuracy:
hold R1 or L1 for better aiming.