Linking the game to PROS grants you access to unique items in the game. One of which is Trickster's Smile Knife. To acquire this item, you need to progress in the game till you unlock the trader Carlos. Here's a detailed guide on what to do after this.

Obtaining the Knife

• Ensure that you have already linked your game to the PROS account.
• Once you've linked your game to the PROS system, you will receive an in-game notification listing the steps you need to take to acquire the knife.
• Locate the trader Carlos on the map, he will be inside Emma's Mansion:

• Trade with Carlos and find the item, then purchase it - this way, you will acquire the Trickster's Smile Knife: