When your prompt to press 3 and 1 or 5 and 6, then it means that you'd have to press both of those keys rapidly at the same time in order to get Leon to run a little faster.
I have the same issue. Only 'Enter' works for '3' 5+6 does not work. This game must have been adapted for PC from a console. I would expect more from Resident Evil. No mouse use etc.
If I only hit 3 repeatedly as fast as humanly possible he gets crushed, but hitting enter repeatedly eventually gets to a prompt to hit 1+3 or 5+6 and that's when I die. I try hitting them repeatedly at superfast speeds and he gets crushed. What fun is it to ruin a keyboard anyway? Hitting a single key repeatedly is boring, and when it's buggy it's downright annoying. Wasn't this game released almost a year ago and still no US patch.
[Edited by xtric8, 2/21/2008 7:57:16 PM]
[Edited by xtric8, 2/21/2008 7:58:36 PM]