1.At first I didn’t realize I had to go to the game page to find the instructions and lasted like a good ten seconds lol. Eventually I figured it out and the longest I survived ended up being around 3 minutes. Once I got the hang of it it wasn't too hard to last a while, but after all the guns are used there's nothing else to do.
2. This is hard to say because at first it seemed like too many enemies, but as I learned how to play it felt easy to run away from them, making it easier to deal with that many. So I guess what I’d do is have them spawn in slower at the start but increase the number of enemies as the timer increases.
3. I think you can keep it as swapping the arms, because if they were bound to different buttons I feel like I would have a harder time knowing which one is “equipped” and taking damage. So I think even if it takes a second to learn how to swap the arms it is fine because it doesn’t feel “unintuitive” or annoying, it is more a small challenge that the player works through when first getting to know the game.
4. I liked the controls, especially jumping and movement felt smooth enough, however shooting the gun sometimes felt off, like it was hard to tell if I was actually doing damage to the robots or not. (Perhaps this could be fixed by adding different sound effects to the different guns?) Even though one was technically faster than the other both guns felt pretty similar so maybe adjust the way they work a little to make them feel more different?
5. The UI made sense, although I would probably make the timer a little bigger so it feels more important. Also since the UI is the same colors as the background sometimes it feels like it blends in too much, so something like making the contrast higher might make it look nicer. Also because of that, sometimes I would stop paying attention to health bars and not realize I’m about to die, so similar suggestion but I think doing something like changing the health bar when the guns are almost about to break would be helpful.
6. I kinda mentioned the UI in the previous question but other than that I think the art style was effective in its communication. The player and robots are clearly separated from the background. The guns before you pick them up are quite small, so maybe making them glow or something might help to make them be more obvious, but that’s a very minor complaint so overall I’d say it looks pretty good.
7. Sometimes when jumping and landing on another robot you’d jump a little extra high, I’m not sure if that was intentional but it was kinda fun and made it easier to reach some of the higher platforms. Also sometimes it seemed like the guns wouldn’t always fire consistently which was a little more annoying.