Oh interesting... you are playing with your index finger. I never thought of that. I hold the phone in one hand and the other one is holding on to the pole in the subway lol. Maybe the powerups are fine with sound being an indicator. I am usually multitasking though, listening to a podcast or an audible book while playing games and trying to balance a coffee somehow, so i had turned down the sound of Dodgey. I am big on having sounds in games though and if i were playing it at home i'd have the sound on for sure.