*CAUTION*
Please note that the Debug Mode will NOT work with the Steam version as it will Crash the Game when attempting to do. You'll need the actual CD ROM Version of Spy Fox 2: Some Assembly Required & the latest version of ScummVM to access the Debug Mode for the Game

First, download the ScummVM Emulator here:
http://scummvm.org/

Then, follow these steps:
1. Insert your SPY Fox 2 US/UK CD into your Disc Drive.
2. Click on QUIT at the autorun.
3. Open the CD
4. Create a new Folder on your C Drive and Name it: "HEGames".

5. Create a New Folder in your HEGames Folder & Name it "SpyFox2 US"
(If you're using the US CD Version) or "SpyFox2 UK" (If you're using the UK CD Version).

6. Copy the SPY Fox CD Files to your SpyFox2 Folder on your Hard Drive.
7. Run the ScummVM Installer & follow the instructions shown.

8. DON'T Open SPY Fox 2 just yet. If you're using a newer computer,
you'll need to use the ScummVM Emulator.

9. Open ScummVM
10. Select "ADD GAME"

11. Find the folder where SPY Fox 2 US/UK are Installed on your Hard Drive, select CHOOSE & then select OK. After that, the games should be added to the ScummVM Library. (If you're adding the US Version of SPY Fox 2, Add "US Version" in Parentheses or Brackets and if you're adding the UK Version of SPY Fox 2, Add "UK Version" in Parentheses or Brackets.)

12. Highlight SPY Fox 2, then Double-Click on it to start or select START.

After You Start SPY Fox 2 and you play or Skip the Introduction, wait until you are clear of the Story Dialog and Inventory Get Segments once you're inside the Ski Lodge.

Press CTRL, ALT & D at the Same time to bring up the ScummVM Console, enter Room 46 (Path Select) then press enter.

When inside Room 46 being the Paths Menu, you can set the game up as you desire but NOT the Talked to LeRoach, Solved Service Guard Puzzle, Solved Heel Puzzle and Fill Spy Vaccum.

The Game Setup Paths are as follows...
= Venus Flytrap or Regenerator (Destructo-Restructro Lux) Path for the Main Playthrough
= The Breath Food Needed (Pickle, Onion or Pinapple)
= The desired Dogbot Off Code
= The desired Rebus Statue Code for the Destructo-Restructro Lux 3-Number Code
= The desired Destructo-Restructro Lux 2-Letter Code
= The desired Destructo-Restructro Lux 3-Number Code

When you are finished setting up the game paths you want to play, click on the arrow to return to the game and play with the desired game path setup of your choosing.

You can't change the Lock Code for the Venus Flytrap, the ID Card needed to get past the Service Guard, the Fire Escape Puzzle in the Dogbot's Mouth, just to name a few things that can't be changed in Debug Mode

For more details on each Walkthrough Path of Spy Fox 2, check this guide.
https://gtm.steamproxy.vip/sharedfiles/filedetails/?id=255261223

Lastly, if you're not satisfied with the game setup path that you chosen in Debug Mode, you can restart the game by pressing F8 and repeat the process until you're satisfied with the game path you want.