yes there's a flipper on the top left, it's a 'skill shot' that lights the 100 or 200 point lanes

As far as I can tell 'punkte' just means points, on the english BG it's just called 'Rock-a-Rock'
when you light the ROCK or MAKERS rollovers you score one Rock-a-Rock point (& 100 regular points), the game has an add-a-ball feature that can be set to award extra balls for Rock-a-Rock points (set to 5 & 8 right now)
Also It's nice to have a running total of how many times you've lit the rollovers. it's a good incentive for novice players (like my wife) so they feel a sense of doing well even if their score sucks ;)

There's actually more to the game than it seems at first glance and it's pretty good fun
there's the Rock-a-Rock rollovers that are the main goal, but there's also a ball-save on the bottom right that sends the ball back to the shooter lane and one that's in the Rockcrusher lane (RHS) that sends the ball back to the shooter if you don't send it up there with enough force
The zipper flippers are a lot of fun too

I'm going to attempt to clean off the crappy touch up job and see what it looks like with just the original art on the cab, you can't really tell in the pic, but the white section that's been touched up on the side is all tinged blue, like they touched up blue first, then started the white before the blue was dry and got it all mixed together, also the black sections on the front should be white, I don't mind a vintage look to the cab, just not looking like my 6 year old has had a go at the art
same deal with the backbox, it's been painted all white, but i can still see the original art below it, so I'll try to gently get the white off first and then see how it comes up

when my kids saw that the BG had a volcano and a monkey it was met with immediate approval, lol
it looks pretty cool when it's on, the lights behind the name and behind the volcano flash off and on, which is a great effect

Thanks for all the comments guys =)