If it's a game hack, the user wants a guide on how to use an unlimited money cheat code for this game in 2021. Alternatively, if it's a car mod for a game, allowing the player to drive a pickup truck model 135 with unlimited money. But I need to verify this.
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 I need to consider the possibility that "Pickup 135" is a specific mod or game version. Maybe in a game like "Garry's Mod" or "Steam Workshop" there's a "Pickup 135" mod. Alternatively, it could be a mod for a game that involves pickups, like "Overcooked" where pickups are ingredients, but that seems off.