So something really weird about this is that the coins all have a tendency to kinda just 'bounce' and 'squish' into tall piles without actually pushing the mountain ahead of them, due to them constantly clipping through each other. They're all too light to exert any influence over the bigger objects no matter how many of them there are due to to the sheer weight disparity so the only time anything actually happens is A) when enough objects spawn to move each other off the edge or B) when the pile of coins gets so unstable from the glitchy physics that they literally vibrate their way off the edge. The coins at the back don't really push the coins at the front at all and the way they get to the front is by forming a critical mass of coins at the back that literally JUMPS up and forward to the more frontal area from squeezing into each other too hard.
Overall it's kinda enjoyable but the physics make it more aggravating to play than the real thing.