He heard the zombie noises from upstairs again and firmed his decision, "Alright, let's go upstairs and kill those zombies one by one."
"Squeak!"
"Chirp!!"
"Sshh! Don't be loud. We need to be stealthy because we're dead meat if they attack us in a horde," Yang Zhang warned his pets because he knew his pets had the tendency to go rash and loud.
"Time to go tactical and no scope 360 them one by one," Yang Zhang said as he grabbed a few pea bullets and slowly tiptoed. He stuck his head out in front of the staircase to see if there was a zombie on the stair.
Once he found one, Yang Zhang pouted his lips and put the pea bullet in front of his mouth. He blew the pea bullet, and it launched quickly.
Pshew!
"Hrrr! Urk!"
Again, Yang Zhang hit the back of the zombie's head and killed the zombie in one shot. The other zombies hadn't noticed him yet, much to his relief. He slowly ascended to the second floor and shot any zombies in front of him with the same method.