i read in the online solution about all the things you can do with the giant Goublika but there is no mentioning about it in the actual walkthrough (or non that i found) so can someone enlighten me how to do those things?

I think that they were taken out of the game before release. Still there but unattainable. There are some others. Nobody has yet been able to kick them off. I don't think you can as the game stands...