In a new project go to Game_Character and look at lines 684-694. The default code is below.
CODE
#--------------------------------------------------------------------------
# * Move at Random
#--------------------------------------------------------------------------
def move_random
case rand(4)
when 0; move_down(false)
when 1; move_left(false)
when 2; move_right(false)
when 3; move_up(false)
end
end