Level  Password
2      DOLMAN
3      SONAGAV
4      ACEDUF
5      JOJOGUN
6      WENSKI
7      SAEGGY
8      MAZMAN
9      DAZMAN
10     DELUCS
11     ANDOOOO
12     KIMBCHS
13     ANDYMAC
14     YERMAN
15     OLLIEB
16     THEYOLK
17     TONYMASH
18     ANDYCROW
19     BIONIC
20     TSLATER
21     IAINTHOD
22     JONRITZ
23     CLAIREC
24     STEVEBOT
25     ANGUSF
26     EUANLAC
27     EDFIRE
28     STUBOMB
29     THONBOY
30     JIMMAC
31     PUGGER
32     ROSSCO
33     CAKEBOY
34     NIKNAK
35     SAGLORD

Enter these codes at the main menu.

Code      Effect
WOOWOO    Havoc Sirens
SUPACAM   Enemy FallCam
BENIHILL  Benny Hill Cars
PANTALON  All Secret Missions
          (in Training menu)
DOOBIES   Infinite Shields *
MRTICKY   Infinite Weapons *
STATTOE   In-game Info

* You can't progress past the current mission when this code is enabled.