This extremely rare cartridge was used to test Game Boy Advance systems and is notable in that every single emulator fails at least one of the tests. GBA hardware clones will also fail one or more of these tests.
By default, the system will boot straight into the aging test, but the menu can be accessed by holding L + R at startup. From within the menu, you can run various tests and also modify the default startup behavior of the cartridge. This will alter certain flags in the save file of the cartridge.
