While playing a game, type "CHEATSEQ" (case-sensitive) to enable cheat mode. 
Then, enter one of the following case-sensitive codes at the pause menu to 
activate the corresponding cheat function. Note: Press [Esc] while playing a 
game to display the pause menu.

Result - Cheat Code
Skip to next level - TERHSRER 
Win level - HERHSORE 
Win all levels - QHEROEST 
Weapons - HHROQTAT 
Items - HTARSREC 
Cargo - HTARSREC 
Repairs - CCHASERQ