Yeah, it's "flipperless" alright.
It's a puzzle game similar to puzzle bobble and the like, only you make change by arranging 5 "ones" to make a 5-piece, two 5-pieces to make a 10-piece, five 10-pieces to make a 50-piece, two 50-pieces to make a 100-piece and five 100-pieces to make a 500 piece. Two or more 500 pieces disapper off the board. You can pull down as many of one type as you can collect and they only have to touch each other vertically or horizontally to count as a line. If you line up more than a given amount (say eight 10-pieces instead five, it eliminates all of them as if there were only 5, which can help clear the stack). The basic objective is to cause "chain reactions". That is, when say five ones joint together to create a 5-piece, if you set it up right, that 5-piece will then fall into another 5-piece above or beside it and that creates a "chain".
I've gotten like 8 chains before (you have until the next reaction finishes to add more to it also). The stack moves DOWNWARD every so often and if you're playing against an oppoent (as shown in the snapshot), for every "chain" reaction you make, their stack moves down a line and so an 8-chain would be DEVASTATING to your opponent (it's like the sky is falling) unless they're almost to the top. You beat your oppenent by crashing their stack through the bottom of the screen and move on to the next one. You can also just play against time for a high score (kind of boring, though).
There are two special pieces as well that don't show up very often by comparison (well you need two, so the 2nd one is rare). "ER" is "erase" and if you can hit two of them together, whatever piece is sitting above the one you hit will disappear all over the board (so if there's a lot of ones on the screen, you make them all go away and the remaining parts will all fall into the gaps and often create a series of chain reactions.
The other one is "RU" and I'm not sure what it stands for, but it turns all the pieces on the screen based upon the one above it to a different (but same) higher value. That might be useful or it might not do much of anything (I'e had no chains from it before), but it does tend to group a lot more together so you can make chains faster. "ER" can save your life if you're close to the bottom, but "RU" is more useful more often if you're only part-way down and still have time to make some chains yourself, but it all depends.
Screenshot: