Landmark Precedent & Video Game Idea-Expression Dichotomy
Judicial boundary between free abstract mechanics and strictly protected expressive elements
Key Authority: 863 F. Supp. 2d 394 (D.N.J. 2012)
Unprotectable Ideas & Functional Mechanics (Safe to Emulate)
| Game Mechanic | Legal Doctrine | Status |
|---|---|---|
| Falling Geometric Blocks | Scènes à faire / 17 U.S.C. § 102(b) | Idea / Free |
| Clearing Completed Horizontal Lines | Standard genre convention | Idea / Free |
| Speed Acceleration over Time | Functional difficulty curve | Idea / Free |
| Rotation around 90-degree Axis | Mathematical system | Idea / Free |
| High Score Leaderboard | Generic competitive tracking | Idea / Free |
Protectable Audiovisual Expression (High Infringement Risk)
| Specific Expression | Landmark Ruling | Infringement Weight |
|---|---|---|
| Exact 10x20 Playing Matrix Aspect Ratio | Tetris Holding v. Xio (2012) | Severe |
| Shadow / Ghost Piece Silhouette at Base | Tetris Holding v. Xio | High |
| Specific 7-Tetromino Color Assignment | Atari Games v. Nintendo | Severe |
| Preview Lookahead Box Top-Right Placement | Tetris Holding v. Xio | Moderate |
| Korobeiniki Chiptune / Russian Folk Arrangement | Master sound recording copyright | Critical |
Exportable Legal Counsel Risk Memo
Automated litigation readiness brief for digital campaign leadership and media attorneys
PRELIMINARY IP INFRINGEMENT & FAIR USE MEMORANDUM
DATE: September 4, 2026
RE: Campaign Arcade Parody Derivative Assessment
TARGET ASSET: 2024 Presidential Campaign Arcade Reskin Simulation