Codes:

 These codes are only tested with the German version. Please report
 the differences (if there are any)

 Mission 2: CMMKBMMMJ
 Mission 3: CMN-BMMMZ
 Mission 4: CMBRNMMM5
 Mission 5: CMVBBMMMG

Cheat:

 If you don't want to die press [Esc] and type in WATERFALL and
 press [Esc] again. Now you have unlimited lives and pressing [T]
 doubles your speed. Press [F12] to disable the cheat.