Performing different combinations results in different overall attacks - for example typing "LS" will throw a clumsy punch with your left hand, but if you perform "LF" beforehand (to clench your fist) then you'll throw a jab instead. If you had withdrawn your hand ("LW") before clenching it, then instead of a jab, you'd throw a powerful stunning blow. To list the combinations available see the help files for "hands", "feet" and "eyes". Note that the jumping techniques are unique in that they require timing - once your feet leave the ground, you have only two seconds to perform another move with your legs otherwise you land again. The majority of moves rely purely on the order of the techniques, regardless of timing. In many cases it's often worth stalling a blow until the right moment - perhaps waiting until you're able to sweep your opponent (or until they're off-balance from trying to kick you) before moving in with a devastating flurry of punches that they cannot hope to avoid.