Power, speed, and handling
I haven’t played X8 yet, but according to the guidebook, there are differences in how the characters run now, as well as jump. Zero’s dash is the fastest, and he was also timed with the fastest kill (with the default weapon). Just from his name, I would have assumed Axl/Accel was the fastest, but he’s the slowest both at running and at killing. This should teach me not to make assumptions!
So if it’s speed you want, in X8 at least, instead of run & gun, it’s dash & slash!
(Also HELLO and my this community is deserted. Where's the love, people. :( )
And welcome to the asylum! If I'm lucky, I'll be able to upgrade or replace my (very old) computer later this year, and play X8 for myself. But meanwhile I could use an occasional reality check like your comment!