Thunderbirds Pinball contains 6 missions for the player to complete alongside the International Rescue Team. These missions can be completed in any order, but once a mission is started it must be completed before another will activate.
In mission #4, players must hit the impact target on the lower left side of the playfield in order to defeat the Mole. The harder the impact target is struck, the more points the player is awarded. Once the impact target has been struck six times, the player has successfully defeated the Mole and completed the mission.
You can view the completed mission at the following link: https://www.youtube.com/watch?v=l3jSgWVwnYw