Doomsday: Transform Everything and Build a Steel Fortress

Doomsday will erupt in three minutes?

What should I do when I’m stuck in an old van in the middle of the city?

It was alright!

God-tier modification system activated!

Ding! The old van has been successfully modified. You have received a Level 1 armored vehicle!

Ding! Abandoned base has been successfully modified. You have received a steel fortress!

Ding! The exoskeleton armor was successfully modified! You have obtained a Unicorn Gundam!

Transport plane? A cargo ship? Firearms? Ammo?

All modified!

[PS: No Holy Mother, decisive killing, please feel free to taste!]