How can I help?

Hold anywhere on the screen and the comet curves; let go and it flies straight. When the comet crosses its own trail, the loop closes and snares every spark inside it. A bigger loop scores more, and snaring several sparks in a row builds a combo. Touching a mine ends the run.

The four-step tutorial runs the first time you play. You can replay it any time from Settings > How to Play.

It is an optional second chance. After a run of at least 30 seconds, and only when an ad is already loaded, you can watch an ad to revive the comet: it respawns, the mines around it are cleared, you get two seconds of shield, and the run carries on with your score. It is offered once per run, and only if you want it. Closing the ad early leaves the run over.

Yes, all three are in Settings (the gear on the title screen). Reduce Motion turns off screen shake and hit-stop, softens the loop flashes and fades overlays instead of sliding them. The game also follows the iOS Reduce Motion setting.

If your iPhone is signed in to Apple's Game Center, every finished run is ranked on three leaderboards: all time, this week, and the last 30 days. A LEADERBOARD button appears on the title screen and a RANKS button on the RUN OVER screen; both open Apple's own Game Center screen.

Runs you abandon from the pause menu are not posted, and neither is a score of zero. If you are signed out, or Game Center is turned off, the buttons are simply not there and the game plays exactly the same.

The weekly board restarts every 7 days and the other every 30 days, which is the longest Apple allows — so it is a rolling 30 days rather than a calendar month.

Not from inside the game: Apple gives games no way to withdraw a score once it is posted. Signing out of Game Center stops anything new being posted, and Settings > Reset Best Score in the game clears only the number kept on your iPhone. If you need a posted score removed, write to me and I will ask Apple.

Settings > Reset Best Score, then confirm. Your best score is stored only on your iPhone, so deleting the app also clears it.

Never while you are playing. A full-screen ad can only appear when you leave the RUN OVER screen with RETRY or MENU, it does not appear in your first few runs, and several runs and minutes must pass between two of them. The rewarded ad behind CONTINUE only ever plays if you tap it. There are no banners and no ads when the app opens.

Open Settings > Privacy Choices in the game. That opens Google's privacy options form, where you can change or withdraw the consent you gave, and where people in US states with privacy laws can opt out of the sale or sharing of their data. The row appears whenever those choices apply to you.

iOS tracking is separate: the app asks once, after your first completed run, and you can change the answer at any time in iOS Settings > Privacy & Security > Tracking. Saying no changes nothing in the game.

Please tell me, with a screenshot if you have one, at vdiamant.apps@gmail.com. Ads come from Google AdMob and are limited to a PG content rating, with sensitive categories blocked, but reports help me block more.

No account of its own, no names, no location. The game keeps your settings and best score on your iPhone, and uses Google services for ads, game statistics and crash reports. If you are signed in to Apple's Game Center, your run scores are also posted to the leaderboards — that part is Apple's, and it is optional. The privacy policy lists exactly what is sent and to whom, and Your choices explains how to change it.