-lee is set up to be tickled (blindfolded, restrained.. however you want, just not gagged) and the -ler gets to ask a pre-determined amount of questions about themselves. The -lee must answer correctly, otherwise be tickled until they can come up with the correct answer. For every question the -lee genuinely does not know, they get tickled mercilessly for that number of minutes afterwards.
Other variations could include questions about movies, music.. anything that the -lee/-ler know fairly well. I find that it's better to ask questions that the -lee ought to know, because then if they get it wrong, the -ler has the added bonus of revenge tickling. But don't make it too obvious, otherwise the game will end up being boring. Also, if this is something that you're planning on doing as a surprise, you could randomly hand them a list of answers weeks before (if they ask, don't give them any other information other than it's a game that you want to try.) Or, it could make for an interesting ice breaker between pen-pals or online tickle friends. Especially if you've fed them the information over a bunch of emails.
Other variations could include questions about movies, music.. anything that the -lee/-ler know fairly well. I find that it's better to ask questions that the -lee ought to know, because then if they get it wrong, the -ler has the added bonus of revenge tickling. But don't make it too obvious, otherwise the game will end up being boring. Also, if this is something that you're planning on doing as a surprise, you could randomly hand them a list of answers weeks before (if they ask, don't give them any other information other than it's a game that you want to try.) Or, it could make for an interesting ice breaker between pen-pals or online tickle friends. Especially if you've fed them the information over a bunch of emails.