What part do i need

[Hawk Daddy]

Ok so this is what I'm going to do, I'm going to turn that old millipede cabinet into a multi cabinet, but I'm jsut going to have millipede, centipede, and missile command in it.  I plan to use the same side art thats on it, but get a new cp overlay and make 2 new holes for the other fire buttons, i know that i'm going to need an optiwiz  am i going to need a key wiz also?  and does the opti wiz have inputs for three buttons, like a mouse does?

Hawk

[Stobe]

There's a couple different ways you could do it...

A miniPac with the right harness has both button inputs and spinner/TB inputs on it.

or

You could use a Keywiz/Ipac and a Mouse hack for the TB

-Stobe

[Kaytrim]

Another option is the OptiWiz from GGG.  It has inputs for the three mouse buttons as well as the three axis for the mouse.  However you might want to have a KeyWiz as well because you will need inputs for credit, start, and exit game. 

WIWS is to get one of the following options.

KeyWiz eco + OptoWiz  $35.90
MiniPac Opti $69.00

Both options will do what you want equally well.

TTFN 
Kaytrim