|"An ultra-gigantic secret weapon unearthed by the Ptolemaic Army. Due to its gigantic size, the war ended before the excavations."|
Cut content from Metal Slug 5, the Stone Turtle is a large boss unit appearing in Metal Slug Attack. It's available via the Team Battle Shop, and parts can also be obtained through the Treasure Hunt once VIP level 5 has been reached.
It offers a hefty health pool and is very large, so it can shield many allies. Unfortunately, it has poor damage with both its stomp and missile attacks, though the missiles can stun with 2 unlocked. Ptolemaic Army faction members can also enjoy a health buff (up to 34.5%, with a maxed out 4).
Ptolemaios also has the same health buff as the Stone Turtle to give Ptolemaic Army units even more health, in addition to a speed increase buff. However, he is considerably harder to unlock.
Squish (Spread) - Stomps its enemies using its gigantic foot, dealing massive damage in a medium area.
Missile Salvo (Spread) - A pair of missile turrets appear on the side of the Stone Turtle, and shoot out eight rockets (in four sets of two). With 2 unlocked, these additionally have stun capability.