Extra Features
The game includes several special features.
- Art Gallery - Concept art of Metal Slug 1 to 6.
- Wallpapers - PSP-only option. A collection of wallpapers that can be copied to the Memory Stick.
- Sound Gallery - Music from Metal Slug 1 to 6. The PSP version includes an option that allows the player to copy the music to the Memory Stick as Atrac3+ format audio files with the proper track name and album tags.
- Game Options - Including difficulty, lives (which can be limited or unlimited, if they are limited the amount of lives the player has depends upon the difficulty) and a rapid-fire option.
- Interview - A readable interview with some of the games' designers and programmers about the Metal Slug series itself.
Read more about this topic: Metal Slug Anthology
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