- Difficult Mode B
Game B, a difficult mode in which the numbers are displayed in both left and right positions.

- Elements of gameplay
As you play through the game, you will unlock new characters that you can use. The rules are a little different for each character.

- Recreating a nostalgic atmosphere
The instructions that come with the electronic game reproduce the atmosphere of the time. In addition, you can play with deteriorating reflectors and polarizers.

I hope you enjoy the nostalgic sense of play!