To activate the cheat press the 'F' key and the type in any of the
following:

"I THINK THEREFORE I AM"--Exit level without getting chips
"09/12/57"----------------------------------Unlimited time
"SAGITTARIANS MAKE BETTER LOVERS"------For infinite extras

Press 'C' to skip levels.

NOTE: If you can't get the above to work try this;

Start the game normally then press 'F' (the screen should flip upside
down):

Now you can enter following:

"SAGITTARIANS MAKE BETTER LOVERS." (with fullstop) to give you an infinite
supply of keys, shields, ice boats & magnets
"09/12/57" ----------------------- for unlimited time
"I THINK THEREFORE I AM." -------- and you don't need to collect chips to
escape and you can press 'C' to skip to the next level

Pressing 'F' will return you to the game.

LEVEL CODES

001- "BDHP" | 037- "VQNK" | 073- "QCCR" | 109- "KZQR"
002- "JXMJ" | 038- "BIFA" | 074- "MKNH" | 110- "XBAO"
003- "ECBQ" | 039- "ICXY" | 075- "MJDV" | 111- "KRQJ"
004- "YMCJ" | 040- "YWFH" | 076- "NMRH" | 112- "NJLA"
005- "TQKB" | 041- "GKWD" | 077- "FHIC" | 113- "PTAS"
006- "WNLP" | 042- "LMFU" | 078- "GRMO" | 114- "JWNL"
007- "FXQO" | 043- "UJDP" | 079- "JINU" | 115- "EGRW"
008- "NHAG" | 044- "TXHL" | 080- "EVUG" | 116- "HXMF"
009- "KCRE" | 045- "OVPZ" | 081- "SCWF" | 117- "FPZT"
010- "VUWS" | 046- "HDQY" | 082- "LLIO" | 118- "OSCW"
011- "CNPE" | 047- "LXPP" | 083- "OVPJ" | 119- "PHTY"
012- "WVHI" | 048- "JYSF" | 084- "UVEO" | 120- "FLXP"
013- "OCKS" | 049- "PPXI" | 085- "LEBX" | 121- "BPYS"
014- "BTDY" | 050- "QBDH" | 086- "FLHH" | 122- "SJUM"
015- "COZQ" | 051- "IGGJ" | 087- "YJYS" | 123- "YKZE"
016- "SKKK" | 052- "PPHT" | 088- "WZYV" | 124- "TASX"
017- "AJMG" | 053- "CGNX" | 089- "VCZO" | 125- "MYRT"
018- "HMJL" | 054- "ZMGC" | 090- "OLLM" | 126- "QRLD"
019- "MRHR" | 055- "SJES" | 091- "JPQG" | 127- "JMWZ"
020- "KGFP" | 056- "FCJE" | 092- "DTMI" | 128- "FTLA"
021- "UGRW" | 057- "UBXU" | 093- "REKF" | 129- "HEAN"
022- "WZIN" | 058- "YBLT" | 094- "EWCS" | 130- "XHIZ"
023- "HUVE" | 059- "BLDM" | 095- "BIFQ" | 131- "FIRD"
024- "UNIZ" | 060- "ZYVI" | 096- "WVHY" | 132- "ZYFA"
025- "PQGV" | 061- "RMOW" | 097- "IOCS" | 133- "TIGG"
026- "YVYJ" | 062- "TIGW" | 098- "TKWD" | 134- "XPPH"
027- "IGGZ" | 063- "GOHX" | 099- "XUVU" | 135- "LYWO"
028- "UJDD" | 064- "IJPQ" | 100- "QJXR" | 136- "LUZL"
029- "QGOL" | 065- "UPUN" | 101- "RPIR" | 137- "HPPX"
030- "BQZP" | 066- "ZIKZ" | 102- "VDDU" | 138- "LUJT"
031- "RYMS" | 067- "GGJA" | 103- "PTAC" | 139- "VLHH"
032- "PEFS" | 068- "RTDI" | 104- "KWNL" | 140- "SJUK"
033- "BQSN" | 069- "NLLY" | 105- "YNEG" | 141- "MCJE"
034- "NQFI" | 070- "GCCG" | 106- "NXYB" | 142- "UCRY"
035- "VDTM" | 071- "LAJM" | 107- "ECRE" | 143- "OKOR"
036- "NXIS" | 072- "EKFT" | 108- "LIOC" | 144- "GVXQ"