The year is 2192 AD, and humanity faces extinction. Four decades ago, the Stellar-class All-purpose Administrative Computer ALLTYNEX launched a devastating attack against mankind, resulting in the death of approximately 85% of the world's population within just 72 hours. Those few who escaped beyond the solar system now struggle for survival in dire conditions. In a desperate bid for survival, the remaining humans rally together for a final assault to reclaim their home world.

ALLTYNEX Second features 5 stages of intense 2.5D vertical scrolling shooting action. Players will engage in fierce battles against relentless drone armies and formidable Guardian Soldiers. Utilize a powerful melee mechanic with the Blade to decimate enemies, or attack from a distance with Homing Lasers and the versatile Buster Rifle. The game rewards skillful play with an advanced combo system, encouraging players to switch dynamically between melee and ranged combat for maximum effect.

Additional features include Tutorial, Practice, and Replay modes, complete with normal and cinematic viewing options. Prepare for an exhilarating experience as you fight to end the Era of A.I. Dominance!