Snowboarding track 3... I hit a single tree and immediately get off it, play perfectly other than that (getting every gold coin). Nope, silver. The fact that you have to do track 3 literally perfectly to get gold is fairly aggravating...
What happened to the chances of steal in the patch where you redid it? Because now I'm usually failing to steal from the bird enemies 5-6 times in a row before finally succeeding, which is frankly obnoxious.
Challenge 15 is a crock of s*** and while I enjoyed your game overall, I'm giving it one star just for the inclusion of that invitation to get f***ed by the rng for as long as you feel like wasting your time. If you're going to put in something "insanely hard" at least make it have something to do with skill. Hell, you could at least put a "retry" button instead of having to go back to the challenge menu, click challenge 15, and click start challenge.
Please, please, please let us share cards between deck slots. There's no reason not to, and it just makes it annoying when switching decks for duel star challenges.
You can always leave a room by walking to the door with any hero.