To access the Cheat Menu, go to Options and then enter: Down, Down, Up, Square, Left, Left, L1, R1, Circle. When you return to the Main Menu, there will be a new option called "Extra". Choose this and you will be able to access the hidden Cheat Menu.

Mission Name Password 

2 Gun Pod Training KXCSSSDSC 
3 Basic Combat Skills PHPPXDDJH 
4 Primary Weapon Training PJVQXHDJH 
5 Missile Training MHMGTWLBW 
6 Heavy Weapon Training HHMTVCMPD 
7 Advance Weapon Training WVCHDWVCK 
8 Tractor Training HKMBVXMPD 
9 Simulated Battle QJCSSLDDV 
10 Journey Back to War Drum GDQLPPVHT 
11 Route Forging QLLTSHDDV 
12 Defend The Drum LVCVLHDMQ 
13 Power Mining QCTJSBDDV 
14 Defend The Boffins QVMXJCLTM 
15 Killer Comets PMLPWCDJH 
16 The Birth of Hyperspace XKVPBWMGJ 
17 Robots in Space GVJHQTDDV 
18 Surprise Ovon Attack CVHBSSVVB 
19 Patrol LPMCGWVCK 
20 Farewell Iris I KQPKBBMGJ 
21 Convoy GHDMJTLTM 
22 Hiding in Rocks LSMJPSDSC 
23 Space Pirates! XVJKBSVCK 
24 Hyperspace Missiles LHHBXSVVX 
25 Mining CSDWHMVQP 
26 Free Trading PQHBHPVQP 
27 Ship Yards in Space MTHLVQDJH 
28 The Ovon Gift MVXTVSDJH 
29 Human Reconnaissance GCBBPDDDV 
30 Farewell Iris II LKPJBLVCK 
31 Battle of the Motherships HKTTSKLKS 
32 The Edge of Darkness WKVSDXMGJ 
33 The Alliance KWCTBBDWL 
34 Mining for Victory PDCQVCVLG 
35 Heaven's Crossroads QDSJXTLBW 
36 Ovon Power HVLLMDDSC 
37 Solar Winds DHHMXBLBW 
38 Race Meeting HKXLWLVVX 
39 Rescue The Commander TMQPXSDSC 
40 Farewell Iris III WPGLLCDWL 
41 The Outpost VWKTGXDMQ 
42 The Big Guns VBKMJJMGJ 
43 Trojan Horse VGVLJDMGJ 
44 Long Range Threat MSQVCCLTM 
45 The NET SQDVQHDJH 
46 Bomb The Mothers HGTJWGDSC 
47 Excel HJPGLKVCK 
48 Darklight DGGPTXVVB 
49 The End? XCWCSDMPD 
50 The Escape Home SDQTBJVQP