Updated 10/6/15: ‘ve changed some slides, added new ones, to account for changes new features in the official public release. so, when you power up your phone, be sure to take a look at the cool new boot animation! Turn off your phone turn it back on if you missed it! Go to Settings > About phone, then tap the Android version repeatedly until a stylized “M” icon appears onscreen. Tap it again, a marshmallow with Android antennae appears in place of the M. Next, tap hold the icon for a second or two, then repeat this process until the Flappy Android game opens. ess the ay button to start a game. en you’re done, press the Home button to return to the homescreen. The + icon, which went missing in eview 3, is back in the public release of Android Marshmallow. To turn on System UI Tuner, slide open the notification panel, then swipe down again until the Quick Settings tray slides open. ess hold the gear icon until it starts spinning. Confirm that you want to turn on System UI Tuner, then go to Settings > System UI Tuner to see what it can do. If you want all background tasks to continue for a given app, though, you can turn “doze” mode off on a per-app basis. Go to Settings > Battery, then go to the Options menu (the three dots in the upper right) tap Battery optimization. Tap the downward-pointing arrow, then tap l apps. Tap an app’s name, then tap Don’t optimize. Tap Done when you’re all set. The quick settings drawer’s new Do Not Disturb item has a few tricks worth checking out. th it, you can also now toggle Do Not Distrub on or off, set a duration, specify which notifications you want to see. By default, this view shows only apps with access to your information. To show hidden system services as well, tap the Options button (the three dots in the upper right), then tap Show system. The gear icon in the Apps settings houses a few other advanced features, such as whether an app can “draw” over other apps (that is, whether an app can display information atop another app) or whether an app can modify system settings. As roid points out, though, it’s still unclear why these features are here, so we’ll have to wait see. Instead of the toolbar that appeared at the top of the screen, as was the case in prior version of Android, text editing comms now appear in a floating toolbar directly above the text you’ve selected. Tap the Options button (the three dots) to view more comms.