Well, you did better for the cover than I did. I didn't put much thought into it and from yours I realise that it is important. As you did hook me, the hook just wasn't how I interpreted it initially. If the main mechanics were more interesting I'd definetly enjoy this a lot more.
Viewing post in Simulated jam comments
Thanks for the feedback. We're actually planning on continuing this into a full game later on. As for the upgrades it increased your damage and rate of fire by 1 unit per level. I'm planning on changing how that works though. Also we wanted to add some form of health regeneration system but didn't want to add the normal wait for it to come back system. If you keep an eye on my profile I'll be making a post when we fully release this. We'll make sure to keep your feedback in mind when making future versions of this too