Hi,

Perhaps you can try using A & D keys

a key
PHP Code:
if (Key.getCode() == 65 && crash == undefined) 
d key
PHP Code:
if (Key.getCode() == 68 && crash == undefined) 
here is a list of other keys
http://www.makeflashgames.com/resources/keycodes.php
or
http://fornstrom.tjcomputermagnet.co...shKeyCodes.pdf

and here is some advice/code on it
http://docs.brajeshwar.com/as2/Key.html