I need to click far to many times. 4 clicks for attacking? 3 clicks for simply moving somewhere? The game is interesting, but the controls are terrible.
@huitutobyil: Here a new version, which does function properly :P
http://i34.tinypic.com/o5sykg.png I don't think it is possible to shoot two rifles and walk. There is just not enough steam production.
@Kingblast: Using the switch for the rifle is a waste. You can't use it to switch between walking and crouching anymore. http://i38.tinypic.com/kckoci.png This is my solution: it reloads automatically.
This is my double rifle, crouch or walk robot: http://i38.tinypic.com/kckoci.png . And on the cannon: it needs two vents to vent of the pressure. Working examples have been posted earlier.
This is my final solution for level 3: http://i34.tinypic.com/ac9dk.png .
The robot stays crouched while firing the cannon. If the enemy robot is within range flip the switch and he will be roasted by your flames.
I finally got a working steam cannon. I placed two steam tanks in series followed by a fuse valve on 60. After the fuse bar I placed a joint connector, where one part of the connector went into the cannon and the other had two steam vents. The steam vents took care of the pressure drop needed for reloading the cannon. This cannon fired every ten seconds or so over a great distance.
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 "Bureau of Steam Engineering"){kind=icon}