What did you do to your game???

I am an AVID fan of the first game this company created. I just installed the second one. What did you do to my game??? Zombies are incredibly tough. Dogs? Crows? Very tough to aim at. Zombies are so fast. Headshots are close to useless. Movement is weird and difficult.

The first game was among my top 5 games ever played on iOs but this one is close to worthless. I will be deleting it soon.

Silver-thorn about N.Y.Zombies 2, v1.2.1