Yeah I didn't think it worked as well as Nitro Groundshaker. Then again, I also wonder how much it adds to games that aren't designed for it. You get multiball but you don't usually score a ton of points, or more than single ball.
It's pretty neat though

With that mod, I would move the credit light lamp socket to light up the saucer instead.

I think that would be a great mod for a Flash. It also gives a great idea for how to add a multi ball trough to my P-roc Alien Poker.

Sounds great..I will be doing this. ..

forgive the ignorance, but where does one find that "PERC" document ?

I couldn't easily find either.

The mod looks cool, but if the divide by ten roms weren't used then I feel it would be bad. I use divide by ten now as rolling isn't all that hard. With multiball it would be to easy.

Lots of folks left comments on his site but he doesn't seem to reply. I PM here as well, no reply. To busy I guess.

I would like to try, the few parts needed I have.

You guys should make a kit with the rom and sell it with a xtra coin switch and install instructions ...

When I finish my time warp restore, I want to do something like this. Balls could lock in saucer connected to right bull target.

i actually looked into putting a scoop up over on the left side before the pops thinking there was enough real estate.

I was wondering of a quick "reversible" way to add multi ball to older games. Was thinking along the lines of taking the trough switch, whichever preferred saucer switch and the trough and saucer solenoid and controlling those via ardiuno or something. The ardiuno would control the multiball functionality and only relay those switch triggers to the game after seeing two balls in the trough or something. I'm not explaining as well as it plans out in my head.

Over the years I've searched for the PERC doco a few times and can't find it but there is useful info here

http://gamearchive.askey.org/Pinball/Manufacturers/Williams/pinbuilder/ which is where I first saw reference to PERC. It's not the same doco as shown in the Flash multiball video - does anyone have a link to it? Please post as it would be cool to see.

The Arduino addon is what I think would be a good way to modify games. Two ball multiball would always be easier - for example imagine Time Warp where you "lock" a ball in the collect bonus kick out then send another ball in towards that lock - either without hitting the standup at the top of the tunnel or by entering from the pop area side. How do you tell there are two balls stacked in the area without more switches or gates to prevent it happening?

Clay did this, it's on his ninja site. Pretty cool mod.

This modification to Flash was documented on the PinballNinja.com site back in April. Myself and another individual did the modification, for those that care.

Also did two other williams games (tri-zone and time warp and Bally Nitro groundshaker) in a similar multi-ball fashion. if you came to the Ann Arbor pinball show, you could play all these.

We all care....

Absolutely we care! So you have a write up of the time warp mod or a video?

i've been meaning to make those videos. but right now i'm in the middle of trying to make "World Defender" work and become multi-ball! we got the playfield (only) at the show. and since it's probably the only one in north america, i thought it was a good idea to save it. got the game running now (had to make a wiring harness from scratch!), and we'll see where this goes. Still need a backglass though...

Win the lottery!

I have a Flash pin i'm in the process of troubleshooting and getting it up and running but I REALLY want to do this MOD as well. If ANYONE has any further info on how to get the rom burned please let me know or point me in the right direction. I feel like him as I am not very excited when I play it but I would if I were to add this mod.

Please hit me up for ANY breadcrumbs you may have. Thanks in advance

CFH, How did you get the ROM with the changed code on it? Would you share your info and help me get one as well. I a planning on doing this mod however if I cant the specific ROM and I cant really do it. Thanks in advance for any info.

I added post lamps when I owned Flash. Miss that game, darnit.

where to find roms to do
that?

m

how to wire that? thanks

is the rom available for download on the ninja site? thanks

No it isn't available for download. I sent him an email about it but never heard back.

sad!!!

Given that the update is based on original williams code I'm sure Rick from PPS (who holds the IP rights to williams) would want to get paid something from whoever gives out the code...even if it was given away for free.

Did anyone have any luck getting a copy of the Rom?

I don't believe Clay is willing to share the files and process. I've reached out and I know a few others in my small pin community have, as well. No replies. He's done a ton to help the community, so if he has decided to keep this one close to the vest, no complaints here.

frankly the whole idea still needs work. don't want to share something that i'm not 100% with. VFW members have asked me to go back to single ball Flash, for a couple reasons.

Ok I understand. Just picked up a flash 2 weeks ago with battery acid damage and thought it would be cool to try while i was working on it.