Eventhough the concept is nothing new, it is done very well in this game and I haven't encountered any bugs. The two player mode is also great if you want to play a quick local round and have some lighthearted fun.
My only complaints about this game are the rather boring customizations. There are a lot of different characters, but when playing none of them really stand out, besides the pirate you get early on. He at least has a little parrot that follows you for a while. When playing the other characters, they are kinda only different colors, no new animations or any kind of gimmicks that could fresh up the game.
Some ideas that I think would fit are like some kind of trail that showed your pathing, maybe instead of rolling you get a little teleport animation (keeping the same distance though) or maybe even give the player a basic blob that has no animations (for the ultimate highscore efficiency playing)
I also wish you could exit one side and come out the other for even more complex or efficient pathing, but overall pretty enjoyable =)