Ninja Gaiden II/Sigma 2Edit
In Ninja Gaiden II for the Xbox 360, the Nuclear Armadillo is the final boss of the "The Flying Fortress Daedalus" chapter. Early in the "Quickening Devastation" chapter Ryu crosses a lava-waterfall where two of them are waiting but shoot fiery projectiles and later fights those two simultaneously. In Ninja Gaiden Sigma 2 for the Playstation 3, Marbus is fought instead of two Nuclear Armadillos in the "Quickening Devastation" chapter.
- Throw several (preferably charged) incendiary shurikens at their heads, if playing Ninja Gaiden II for the Xbox 360 version.
- Hold block when it dies, as when it expires it creates a large explosion that can kill the player if not blocked or otherwise mitigated.