Source: Antiriad
The test mode is quite hard to access:
- Reset Game and hold down Player 2 buttons 1 and 2. If you did it fast
enough, you will see the message 'Ready?'. If not try again.
- Press the following Player 1 buttons: 2, 2, 2, 1, 1, 1, 2, 2, 2, 1,
1, 1. If you did this correctly, you should see another message '9th
Mar. 1992'. Now you are in the test mode.
Raine Team 16/02/2002