I wasn't sure what the tanks were doing, which confused me and it didn't feel diabolical

I love the simplicity of the game, i kept tapping faster and faster to take out the tank but they overpowered me each time. The controls are smooth and the experience is very straighforward.
I also enjoyed the fact that your shots have travel time, because this allowed me to be able to shoot different enemies at the same time

Only thing i would wish for is give me a bazooka for the tanks 

The game experience is very smooth. Screen taps and buttons are responsive as well as the bullet spawning and accompanying sound effects. 
However, the progression was too fast, it got too hard really quick. I also didn't particularly feel evil while playing.

It would be nice to have the enemy shoot back at you and controls to move away horizontally  from the shots.

The game concept is very good and creative. The idea of being a Zombie for a change instead of the usual hero fighting the zombies.

But then Gameplay is quite difficult and I have no idea what the game progression would look like cause I can't get to finish the first level. Should try to ease the player into the game with easier first level

I love the idea behind the game - zombies killing humans. Zombies have their story to tell and I want to hear more.

It would have been nice to have instructions at the beginning of the level, that way the player knows what to do. I did not notice the "information button" at the bottom right of my screen until I had figured the game out. Also, having feedback when the enemies reach your wall would have been helpful. 

I enjoyed tapping and the bullet effects. I see myself playing this game casually (earning points, unlocking rewards, unlocking new zombies, weapon upgrades, and so on). 

I hope you continue working on it. I would love to play an updated version. Well done Kizito and Ysabel

From a concept standpoint, the game is pretty awesome

You are a zombie destroying other humans, which is probably very creative
The gameplay is smooth and straightforward with a lot of tapping to kill 

Progression of enemies tells a story of how you are a zombie wreaking havoc

Improvements and Suggestions;
Enemies don't deal constant damage which is weird but works well balancing
Instead of shooting bullets what about you spawn other zombies
You can have other abilities like bombs, missiles
The Graphics is readable but can be improved by adjusting the lighting and a few colour changes

Good game, the bullet spawning is pretty smooth. The tanks stop moving at some point though.

This was a really interesting game. Loved the bullet effect. The difficulty level switched up really fast. The theme of the game and gameplay is quite different. 

Great job on the firing part, i loved the bullet and mechanism. with an update, continuously taping the screen could be a part of the difficulty level. for the defense part, when the enemy reaches your wall, there was no clear outcome. and the title image gave the impression of another game, it was more of a war defend tower than zombies.

Very Very fun game, Loved playing it.

The requirement of consistently having to tap on the screen gets tiring fast. you could have maybe integrated some sort of machin gun mechanism and the player has to keep his finger on the screen and the gun just keeps shooting and also at the same time receiving which direction to shoot

Yeah the level of difficulty goes from like 0 to 100 in .6 seconds

And also not getting the diabolical part of the game

This game was hard to play without a clear lose state. Shooting the enemy is a little unpredictable.. 

First I must say this game gets fun but also difficult very fast :). 

Loved the gameplay. It was smooth, and the bullets honestly never miss, all taps are registered, it was a smooth job. 

The presentation were alright, when I read the hook, I was expecting to play a zombie, but I found myself standing guard and firing at incoming tanks, so was a little taken aback with that. 

Yeah, I mean, you're pretty much tapping maliciously on your screen to slay people, that's pretty diabolical 

Overall, felt the creativity was lacking a bit, and the presentation could be better, but fun, simple and not surprisingly short game because of the difficulty.