Uh... i have had a similar event to my chromebook issue. This time it isn't during the tutorial, but on my third prestige. I'm on mobile this time as well.
Haha I'm glad you enjoy it.
And for the anime noise, SPOILER, whenever a runner gets hit by a rock it selects a random scream sound and there's a very very tiny chance that the burly dwarf screams "itai!" like a little anime girl, as a dumb silly joke lol. In the full game you would've gotten a steam achievement! xD