Motherload

To use a cheat, open the options menu and just type the cheat. If done correctly, you'll hear a noise

blingbling - adds $100000 to cash
penetrable - hull strength + 1
digdug - drill strength + 1
warp9 - engine strength + 1
guzzle - fuel tank size + 1
toocool - radiator strength + 1
supersize - bay size + 1
fillerup - refill fuel
ntouchable - maximize all parts, and give access to core transporter by pressing zero