These tools are meant for testing & debugging the game, they are not intended for end-users so if your save file becomes corrupted or your game crashes, please don't bother the developer with the issues.

This guide is not complete, it just covers the basic operation of the debug UI. I may add more later but considering that the game is in early access and the debug UI may be removed from the final version I don't think it's worth the effort.

To enable debug mode, a launch option needs to be added

• In Steam, right-click the game and select Properties
  
• Click "SET LAUNCH OPTIONS..."
  
• enter "_debug_on" into the text box

Now that you have debug enabled you can use the following shortcuts by pressing numbers on the numpad

0: Reset (resets any of the debug options you have chosen)
1: Invincibility
2: Full Heal (gives you full health & stamina)
3: Super Speed (makes you attack/ run/ jump/ dodge really fast)
4: Damage (damages your health slightly)
5: Down (insta kills you)
6: Quick Save
7: Unlimited Jump (gives you unlimited double jumps)
8: Attack Up (gives you a huge attack power boost)
9: Warp (instantly returns you home)

And then with ctrl + numpad number

1: Res Enemies (respawns all enemies)
2: Kill Enemies (kills all enemies)
4: Money (gives you some more money)
5: Customise (opens the weapon customise screen from anywhere)
7: Level Up (gives you a lot of experience)
8: Restore Weapons (gives you full ammo and full durability)
9: Teleport (will teleport you to where your mouse cursor is)

The most useful option is ctrl + 9 for helping out when something goes wrong.. I fell through the floor in a couple of areas and I would have needed to reload to continue playing.
If you are having trouble figuring out where your cursor is you can enable an option to always show the cursor in the options menu.