Some characters only become "active" or available for selection at specific times of the day based on your GBA’s internal clock. Character Roster Overview

Note: Enabling these codes on the title screen will typically populate the Navi selection menu with the entire cast, including Bass and ProtoMan. 2. The Golden "Real Operation" Requirements

For those using an emulator (like mGBA or VisualBoyAdvance), you can input a Gameshark or Action Replay code that acts as a universal "Title Key." 02000250:FFFF 02000252:FFFF

Using the title key/codes grants you access to a massive roster that was never fully playable in the mainline Battle Network games. Key characters include: The classic duo. ProtoMan & SearchMan: The tactical powerhouses.

Since the original game relied heavily on the (a physical peripheral for the Game Boy Advance) to "slot-in" Navis using Battle Chips, modern players often use "Title Key" cheats to bypass this hardware requirement. How to Unlock All Navis (The "Title Key" Method)

In the context of Rockman EXE 4.5 , "Title Key" usually refers to two things: