they describe the same issues and one had trouble with the laptop when firing the screen moved upwards

That makes sense now. It's because when you're browsing a website, "Spacebar" is the equivalent to scrolling down. So if the webpage that the game is on is taller than the browser window, pressing spacebar will scroll the page down.

I'll leave the developers to worry about the rest of it 🙂 It sounds like the game might have a memory leak so ends up crashing the browser.

The plagiarism is interesting. It's "Space Invaders" but not. Which presumably Atari own the license too. So I can't say for sure.

I'll read your review properly later 🙂