The goal is to catch as many coins as possible during 7 levels. Coins appear when you break bricks. They fly around, bounce and roll, and you need to catch them with your puck. Your "combo" is the number of coins spawned when a brick breaks, it is displayed on your puck. Your score is displayed in the top right corner of the screen, it is the number of coins you have managed to catch since the begining of your run.
At the end of each level, you get to pick an upgrade from a random selection. Many upgrades impact your "combo". Upgrades apply to the whole run and can synergize. For example, "hot start" increases your combo greatly at the start of each level, but makes it tick down rapidly. If you combine it with "+1 ball", "piercing" and "bricks become bombs", you'll clear levels so fast that the combo will still be high when the fireworks are over and your puck will be showered by coins.
What decides how the ball flies away is only the position of the puck hit. The puck speed and incoming angle have no impact. You must delete all bricks to progress to the next level, and never drop the ball.
After clearing a level, you'll be able to pick upgrades among a small selection presented to you. They'll apply until the end of the run. A normal run lasts 7 levels, after which your score is recorded, and you can start again. Each run is different, the levels and upgrades you see will change every time, and new ones get added to the pool when you progress in the game.
The app should work offline and perform well even on low-end devices. It's very lean and does not take much storage space (Roughly 0.1MB). If the app stutters, turn on "fast mode" in the settings to render a simplified view that should be faster.
There's also an easy mode for kids (slower ball) and a color-blind mode (no color related game mechanics).
I wanted an APK to start in fullscreen and be able to list it on fdroid and the play store. I started with an empty view and went to work trimming it down, with the help of that tutorial
