However, this version offers less content and an alternative menu interface. It was also released on PlayStation Store for PlayStation 3 and PlayStation 4 in 20 respectively. Metal Slug 1- 5 and X are done via emulation of the Neo Geo AES versions, while 6 is a ported version of the arcade game. Metal Slug 1- 6 and X are included in the release, and the games have not been altered in any way. This is the same with the characters and abilities, which have all been kept the same, but the game's manual erroneously states that the 'slide' ability is achievable in Metal Slug 4, 5, and 6 - Metal Slug 4 and 6 do not include this feature in either the arcade or console version. Art Gallery - Concept art of Metal Slug 1 to 6.The game includes several special features: #METAL SLUG 6 MOBYGAMES MANUAL# Sound Gallery - Music from Metal Slug 1 to 6.A collection of wallpapers that can be copied to the Memory Stick. 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.
