Oh really? I wasn't aware that they changed things up so much!
I think the worst two were the ones that required the person to click inside of a text box. There was another (or maybe it was the same one implemented differently) that I had converted into a league calculator. And it required them to go to petpet and input stuff. There were some tricky ones haha. The best by far were the userlookups and the shop. The shop especially because you put cheap codestones in there and tons of unsuspecting people come in. Back in the day!