Try the new AI-powered Infinite Story.

YOU save the entire Universe!

Suited up in body armour and carrying enough firepower to level a large building (conveniently), you shoulder charge the foyer doors, screaming your head off, "YAAAAAAAAAAAAAAAA!!!!"
Startled employees and people in suits jump up, and you quickly spray the room with bullets before they can draw weapons! Broken glass, plaster and blood rain down as armed goons spring out from behind the reception desk and out of doorways to take shots at you. Holding an Uzi in each hand you stride confidently forward, firing in two directions at once.
"I'm here for the Diddyman," you announce.
"Go to hell!" screams a voice from behind the reception desk as a grenade flys over the top straight for you!