! Exploding Paintballs ! vs pixelLogic₂

!Exploding Paintballs! is a tilt-sensitive arcade game with paintballs that float (blue and green) and paintballs that sink (red and yellow). When certain color combinations of paintballs touch they link together and, when the link is complete, explode with a loud realistic explosion noise. The color combinations that will explode vary with each Level. The Game Center records various scores on Leaderboards such as number of Levels completed, number of explosions, best times for certain Levels and best times for all Levels combined. Compete with your Game Center Friends to see who can make the most explosions or who can get 10 explosions on one or all Levels the fastest. Gravity is adjusted by tilting the iPhone, iPad or iPod Touch. Alternatively, !Exploding Paintballs! can respond to touch moves rather than tilt. The exploding noise differs for the different color combinations that explode (e.g. gunshots, crashes, bombs). The sound can be turned off or made into a vibration. There are 8 free Levels - 4 with walls and 4 without walls. An In App Purchase expands the number of Levels to 66 - 33 Levels with walls and 33 Levels without walls. !Exploding Paintballs! is based on a kinetic simulation using the device's accelerometer and realistic principles of physics (buoyancy, inertia, viscosity, Hooke's Law and color confinement). For accuracy and stability it uses a half step modification to Euler's Algorithm as described by Feynman (Lectures on Physics, Vol. 1, Ch. 9, P. 5) and Cromer (Am. J. Phy. 49, 455 (1981)). The screen shots below are: 1) Free Level 1 - Red-Blue. A red-blue combination is shown exploding. 2) The Levels Table. The 4 free Levels are shown together with the Best Times and maximum number of Explosions. 3) Free Level 2 - Red-Blue, Yellow-Green. A red-blue (yellow-green for iPad) combination is shown exploding. 4) Free Level 3 - Blue-Yellow-Green. Some partial combinations are shown linked and one blue-yellow-green is shown exploding. 5) Free Level 4 - Red-Green-Green-Loop. Some partial combinations for the loop are shown linked and one red-green-green-loop is shown exploding.

## What is pixelLogic? • It is... - simple - soothing - appropriate for ages x to 25x (where x=5) - not addictive (unless you tap the "One More" button too many times...) • It has... - customizable board sizes - unlimited undos - rotate commands to fit board to your brains or your device - themes - Pencil mode for uncertain moves - Peeking mode for when you wanna be bad - iCloud-synced History to keep your play records, so you can highlight, recall, or share your game board any time - haptic feedbacks so you feel your moves • Plus, it... - supports Dark Mode, iPhone landscape, iPad Split View, Slider Over, etc. - lets you draw with Apple Pencil or your finger - works well with iPad pointers, e.g. Magic Keyboard and mouses - runs on iPhone, iPad, iPod, and even modern Macs (e.g. those with Apple's M1 chips) • And, it's free. - It is our gift. - Wish you a better year than the last! ## How to play? • Each square should be filled with a pixel (i.e. picture element). - A pixel can be either on or off (or positive, negative). • On each row or column of squares, there is a clue. - The clue tells you how many on's are on that row or column, and whether they are together or apart. - e.g. "4, 1" means a total of 5 on's: 4 consecutive and one by itself, separated by one or more off's. - Once a row/column is completely filled with pixels, its clue text changes color: mint if satisfied, or red if not. - However, remember that satisfying a clue only means that; it does not necessarily mean the pixels are correctly placed. • Complete the board with pixels. - If all clues are satisfied, the board is solved! - Note that some boards can have more than one solution. • Now share the game via a simple web link, with or without your time. ## Tips • Swipe from left or right screen edge to call up the Info pages. • Hold on a button for extended options.