Viking (1980) - VPForums.org
Bally Skateball pinball machine Bally Skate ball - collector buying
Skateball Pinball Machine (Bally, 1980) | Pinside Game Archive
Radical! Pinball Machine (Bally, 1990) | Pinside Game Archive
PinballPrice.com - Bally Radical! pinball machine
Skateball (Bally) (1980) (gtxjoe) (Desktop WS) (9.2.1-9.9.0) - VPForums.org
Internet Pinball Machine Database: Bally 'Skateball'
7 Awful Excuses for Pinball Machine Art – The Space Boner
Centaur Pinball | Facebook
Skateboard (Inder 1980) - ROM - skatebrd.zip - VPForums.org
Discontinued Pinball Machines - Reference Page S-S | Global Pinball Machine Sales and Delivery From BMI Gaming
Skateball Pinball Machine (Bally, 1980) | Pinside Game Archive
Radical! Pinball Machine (Bally, 1990) | Pinside Game Archive
Skateball (Bally 1980) b2s - VPForums.org
Igor Samokhvalov (@IGorSamo18) / Twitter
Skateball Pinball Machine (Bally, 1980) | Pinside Game Archive
Skateboard (Inder 1980) - ROM - skatebrd.zip - VPForums.org
Skateball Pinball Machine (Bally, 1980) | Pinside Game Archive
