You can find examples of bunnyhopping on all levels. To master it you'll need quite a lot of practice. However, not just straight jumping, but also using strafe keys and the mouse view to gain more distance and speed.
While I don't wish to go into much detail on the run, as I'd rather you find things out for yourselves, I'll list you all the tricks I used in this run, in case you don't understand certain parts. Doing them took me nearly 10 months, and I'm definitely satisfied with the end result. I did this run simultaneously with my run on Nightmare. Back in December of last year I set out with Allantois to search for new tricks and glitches, because I knew there was still quite a few to be found. This run through American Mcgee's Alice on Easy is my 4th and most likely last one.