E
- Electro-mechanical (EM)
- A pinball machine design that relies on relays, motors and switches to run. This design was phased out in the late 1970s. EM machines are easily recognized by their scoring displays that have mechanical score reels that spin to show the score. Newer machines are referred to as solid state (SS).
- Extra ball
- An additional bonus ball that can be earned by achieving a specific task.
Read more about this topic: Glossary Of Pinball Terms