Well I wouldn't say I was a "kid" at the time, as I was roughly 20 when RE 2 first came out but, I remember a rumor, that I've stated in another thread, about unlocking some Tekken fighter character, if you did a very insane speedrun. I think it was supposed to be Akuma, or maybe Heihachi? the rumored unlock that is.
Basically, at one point in the game, when you are deep in the Umbrella stuff, you can find a cyrotube on the side and go look at it. The screen cuts to a shadowy, muscly dude in there, and there is a control panel, that I seem to recall you could type something into, but there was never anything that worked. The rumor, was that if you did the following, as best as I can remember.
1. Complete the game with all 4 variations of starting character, and obtain an S Rank.
2. Do not use any healing items other than herbs
3. Do not save ( I think, might be remembering this wrong)
4. Do not use any weapons other than the starting pistol.
5. Type in a specific word into that cryotube console each time you go through (don't recall what it was)
6. Do it all in less than some really short specified time.
And supposedly, it would let you use the Tekken character in the game.
And my friend did that shit, as best as I can recall to the specifications he described to me.
Didn't work, but, well it was a rumor.