@DexterZ - The Google Play deployment process was super easy and painless. The only tip I can think of is not to panic like I did when your game doesn't show up in searches on the Play Store even if the search is your game's exact name. If you just wait a few days and get some emails from friends and family, it'll start showing up.
@sqrMin1 - Thank you! I'm really proud of how that start screen turned out. If I've learned from software dev, it's that the only way to make sure people see a tutorial is to shove it in their face, and the only way to make them not hate it is to let them ignore it if they want. I'm hoping this accomplishes that.
I'm considering adding music, but I was worried it would get repetitive and/or distracting. I'm imagining people will probably play this while listening to a podcast or sitting on a bus or something, so I figured I just wouldn't bother. As for a logo or splash screen, I tried making one but I don't really have any artistic talent so they all looked pretty janky. I'll take another pass at it though now that it's released.
Thanks to you both for the feedback!