Bonus missions:At the bonus mission screen, hold Select and press L, R, L, R, L, R. Repeat the code to unlock the next bonus mission. The bonus missions are “Paris-Nice”, “Heroin Factory”, and “Television Free Indonesia”.
All bonus missions:
To unlock all bonus missions, go to splintercellessentials.com on your PSP’s Internet connection, select “PSP User”, and enter “A27200203S” as a code.