Great stuff... but on this test, instructions are a little unclear. It took me a while to understand that the 8 possible positions of the 'door' were the 'image' I was back-matching, and not the pattern of markings on the tunnel sides.

Also, as with other tests, the lack of a clear end (or even break) point is distracting, and makes it hard to compare runs, or even cleanly end a run at a standard length.

Not that whacked_new asked, but my overall estimation of cognitivefun: wow, you're generating a lot of games... but the overall comprehensibility of the site lags a bit. It's almost too much to absorb: where do I start? where do I stand? where do I go next? I suggest spending a little more time (or enlisting some help) with web design/copywriting/info-architecture.

Thanks for the feedback (and the mail as well), and you're right about everything. I'm going to add some fixes this week, which would hopefully solve the "lack of clear end" you talk about; don't know about the CSS fixes yet (shudders).

As for this test, I've battled with the design a bit (and know that it is nevertheless unintuitive). I suppose even after the demonstration it wasn't clear?

Finally, as you pointed out, one of the biggest problems is the clutter now. This has been an issue for a while already, although I still don't know how to best address it. I'm not sure if it is good to give a "start here, then here" guide; I just want users to be able to do whatever they find interesting within a few mouseclicks. But I'm all ears to suggestions regarding front page changes.

Thanks again.

HN user whacked_new builds these things, and doesn't get the credit he deserves IMO. Fantastic work.

Agree. He has build the funfair of brain fitness!

Thanks for the submission and feedback!

w_n! This new one looks great! Going to try it out today for sure.

The best part of the site is the tagline: "cognitive neuroscience for everyone"