Another thought: The user might have confused the game title. For example, "Pickup" as a game could be "Pickup Truck Racing" or similar, and the code "135" refers to the version, level, or vehicle code where "unlimited money" can be activated. However, without specific information, this is speculative.

First step: Search for "Pickup 135" in games. Maybe it's a specific mod or DLC. For example, in games like "GTA V" or "Red Dead Redemption 2," there are various trucks, but not sure about model 135. Alternatively, in a game like "Euro Truck Simulator," there are different truck models but not sure on the naming. Maybe it's part of a racing game where pickup trucks are a category. "Pickup 135" could refer to a specific truck in a racing game.

Focus on enhancing your gaming experience responsibly—cheats are best reserved for single-player or offline sessions! 🚧💨

Another angle: "135" might be part of a code. For example, in some games, pressing numbers on the keyboard in a certain order (like 135) might trigger a cheat, such as unlimited money. If "Pickup" is the game name, then entering code 135 during the game could activate infinite money. But again, without knowing the exact game, this is hard to confirm.

But the user included "2021" in the title, so maybe the code was relevant around that time. Perhaps there was a game in 2021 called "Pickup 135" where players used a specific code. However, a quick search in my knowledge base doesn't recall such a game, so it's possible it's a mod or a less-known game.