Trivia: Metal Slug
- No Export for You: The 3D installment for Playstation 2 has not been released in North America.
- Also, from the main series, the Combat School, a mission-based Dating Sim.
- Port Overdosed: SNK just loooooooooves re-releasing the original game. It's hard to find a single compilation by them that doesn't include it.
- What Could Have Been: Early on, Sophia was considered to play the role of Player 2.
- Many ideas and models were scrapped from the final product, expecially in 5. Including a giant turtle-like mecha and the native zapped by the lightning at the beginning as the final boss on a levitating, laser-spitting pillar. See this page for all the stuff that people have found from the game files.