Zombie Exterminator

I like these rouge games that you play, die, upgrade, get better, try again and repeat.
This game does that.
What I liked:
- The graphics
- Solid 144 fps, even when a lot happened on screen at the same time
- Sound made it feel impactful
- Interesting upgrade system. Thin at the beginning but after one has finished or died, you can upgrade to include more stuff to upgrade.
- The "!" events are a nice addition as it makes the player have to move in order to not take damage. It starts easy but the events are increasing in as the time goes on.
Things I think can be worked on:
- after about 10 minutes (first round playing) I felt too overpowered. I one-shot anything and leveling up wasn't something I wished to happen anymore. It became very much less interesting.
- There are no volume sliders when you are in-game when pressing 'esc'. Would be nice to have.
My ideas on what could make the game more fun/interesting:
- Almost every upgrade I came across has a trade-off - according to me it shouldn't be for the majority of the upgrades. Having a trade-off should be that IF you have a typical play-style in mind that should be in the upgrades. Let me make it clear what I mean:
Let say you have a character that wants a speedy-character. There should be upgrades doing that. The trade-off should be something that seems "reasonable". A speedy character is hard to hit, so trade-off could be, less defense. Why? Well, someone wearing a heavy armor isn't really a fast person, right.
After the first level-up I felt a big change in the upgrades. This is what every upgrade should feel like. Enemies should either be more in numbers or more hp. To counter that one should yearn for the next upgrade. Feel powerful for a moment because you made a though tout decision and then it should increasingly feel thougher.
Maybe have an event on screen where a shop appears where you could buy the parts for guns instead of having them in a level-up. You could have two parts. One for upgrading your characters status like health, speed, crits, defense etc. and a GunShop where you could buy gadgets, parts for guns.
Maybe player could have other effects like, shooting out fire or maybe lightning from his arse xD every 30 second. With an option to upgrade that intensity or damage or frequency.
Maybe have parts that instead of just numbers, maybe have rare, unique and legendary upgrades. Each gunpart has a specific charateristic effect. Bouncing bullets, piercing bullets, exploding bullets, electric bullets, fiery bullets, splitting bullets.
Conclusion:
Upgrades should matter.
You have a good base for a game. But as of now, it feels uninspiring.
I will give you a thumbs up because of:
- Low price
- Intersting "!" mechanics
- The screenshake is done right!
- I have a feeling you want to do better as a developer ;)

Sigh, so where I start. I have a very mixed feeling with this game. It have a strange art style, what not so appealing, but I start to like it. The gameplay is fluid and fun. It have a good concept as on levelup you build up weapons with parts as also you can get extra useful gadgets, then you can get some items with passive stats. It have some meta progress as you can buy more characters, weapons and gadgets for your arsenal.
The real problem is that the weapons, items and character stats is screwed. So you build your weapons, but the result is totaly random and unknown as the tooltips are bugged.
I give it a Positive for now, because of the good gameplay as also the Dev was helpful and fast fixed other reported problems. I somewhat support him, lets hope his next game will be more polished.
I recommend Zombie Exterminator on a good sale.