Pikablu is Marill.
Anyways, at some point in Red, I managed to glitch the game to give me two bicycles in my items menu, not sure how, but it meant I now had a bike to ride on, and a bike to come off of, ah the simple things.
I also managed to have a level two hundred and something with a glitched Snorlax from Cinnabar and giving it multiple rare candies, there would be a point where it would go back to level one, so the fun ended quickly however.
There are legimate walkthroughs that show you how to get a level seven Mew in R/B/Y, although Yellow does have an alternate walkthrough because it was "vastly" different.