Cheat Mode:



 These codes are selected on the options screen at the beginning of the

 game. Place the mouse cursor in a corner of the screen and then press the left

 mouse button, [Ctrl] and [Alt] all together to access the cheat mode.

 Now by clicking a second time in any of the corners you will receive the

 following:



 Top left: Fully loaded super train

 Top right: Super train with more challenge and strong enemy

 Bottom left: Super train with all objects and scenario to win

 Bottom right: Instant victory

---
Source: Amiga Future GTT

Freezer:
Lignite supply: $01FCA9 (or $01FCA8)
Coal for locomotive: $01FCBB (or $01FCBA)