Sooo interesting slot, i like the concept of stacked symbols. I filled the reel 1 and 2 couple of times and it was already enough to figure out the potential. Peggle symbols pay relatively low if on single line but that is something that happens rarely, they appear stacked most of the time and when they make a winning combo than its huge.
Winning across 20+ lines seems like something usual on this slot. And the more features you unlock the more entertaining slot becomes.