Fun, Addictive, but impossible
Once you get to expert level 10-6, it’s impossible. I’ve played it over 1000 times. I don’t think that’s very good level design…I oftentimes would play perfect games without a single mistake it still feels like dumb luck if I were to beat it. If the marbles get near the pyramid the level only gives you the colours near the end of the line to play, but you’re blocked from getting them there. Frustrating!