EDIT: You've gotta be kidding me; I already had one. Damn it, the bot got through. I'll figure something out.
I had a quick look just now at that registration page. I could be mistaken, but it seems that the same image gets used every time you register! (Well not exactly the same, but it's still the same answer for all of them, at least when I tested the page just now.) I'd think this would vastly reduce the challenge to bots.
[edit: my bad. Different images do get used on
different registrations, just that
within one registration, when you either make a mistake or ask to "request another image", you end up with an image that still corresponds to the same answer (as opposed to an image with totally different letters each time you made a mistake, as is typical of this type of verification).]
GP's idea is awesome though, not only will it filter out bots, it would really help ensure that only people with legitimate interest in Lemmings will successfully register. I'll try to PM
Adam Mr. K a list of a dozen or so questions general enough for all Lemmings player to know the answer to. [edit: done]