Why not make lots of little games? I like looking at lots of little games. If you want to put more work in yours, that's fair enough, and you may have a better chance of winning. But I don't think having a lot of ideas floating around here is a bad thing.

Good start of something form a programming point of view. I don't like the theme much, though. (The gun shooting thing.) Can't you make the gun into a penguin and the bullets into fish or something? (Then you would have a crazy penguin throwing fish around - would be much more fun.) Or maybe dodo firing eggs out of its backside. Or maybe a pig squeezing ... out of .... - well, maybe not this one.

Nice start. Maybe you could add some text that shows which side I'm playing, and which side won. Maybe there could also be several rounds of play, and it could show how often each player has won...

Good start. It's nicely playable. I agree that adding some scores would be interesting. Or maybe it could start a little slower, and then speed up the further in you get. Or you could eat an oyster every now and then that makes you poisonous for a little while, so when the lobsters get you, they die instead of you...

I like it! I didn't know the original robots game. The only problem I have is that on my laptop screen, the world is a bit too large to fit on the screen in my browser...