# Gerry Stellenberg

Gerry Stellenberg is an electrical engineer and pinball innovator best known for founding Multimorphic, Inc. and creating the P-ROC controller board. Initially inspired by his college experience playing Bally’s *Theatre of Magic* in the 1990s, Stellenberg combined his software background with a passion for pinball to develop new ways of rewriting and controlling pinball rules. His first major contribution, the P-ROC, empowered hobbyists and boutique manufacturers to build or modify pinball machines by providing a universal hardware interface between a PC and traditional pinball components.

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Building on the P-ROC’s success, Stellenberg led the development of the P³ Pinball Platform, a modular and partially digital machine featuring a large LCD panel integrated into the playfield. This allows real-time ball tracking, interactive graphics, and swappable upper playfield modules—effectively creating a multi-game system within one cabinet. Patented for its hybrid physical-digital features, the P³ and its growing library of titles (including licensed games such as *Weird Al’s Museum of Natural Hilarity*) have demonstrated new gameplay possibilities and shifted industry thinking on how to modernize pinball. Throughout his career, Stellenberg has promoted openness and collaboration, influencing a community of designers and fostering a more flexible, software-focused approach to pinball game development.

## Snapshot
- Roles: concept, code, design, sound
- Years active: 2017-Present

## Games credited
- Design: [The Princess Bride](/games/pinball/the-princess-bride-2024) (2024)
- Software: [Weird Al's Museum of Natural Hilarity](/games/pinball/weird-als-museum-of-natural-hilarity-2022) (2022)
- Design: [Heads Up!](/games/pinball/heads-up-2021) (2021)
- Concept: [ROCs](/games/pinball/rocs-2020) (2020)
- Concept: [Shoot 'n Scoot](/games/pinball/shoot-n-scoot-2020) (2020)
- Design: [Cosmic Cart Racing](/games/pinball/cosmic-cart-racing-2018) (2018)
- Software: [Barnyard](/games/pinball/barnyard-2017) (2017)
- Design: [Cannon Lagoon](/games/pinball/cannon-lagoon-2017) (2017)
- Software: [Lexy Lightspeed Escape From Earth](/games/pinball/lexy-lightspeed-escape-from-earth) (2017)
- Software: [Lexy Lightspeed – Secret Agent Showdown](/games/pinball/lexy-lightspeed-secret-agent-showdown) (2017)

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