I discovered a real anoying bug!
I played extreme today. Had a good run, had 6 lives at the end where you have to make that run for the coin.
I missed the first jumps so these two villains where first. I pushed start to skip the cutscene, but then the game did not continue. I waited a few seconds, nothing happened. Then I notice that when I press into a direction I hear scrooge walking and jumping, so I managed to jump back up and then jumped into the nothing below. So the game took another life and then started the race again, this time I was first. But when I touched the coin, nothing happened! the villains came up, touched it, lost a 1up. Every round again the same bug.
Wont play it again, GTA V is next.