This is a collection of five mini-games and three apps with a "OS like" presentation where you have to click on icons on a desktop to launch the individual programs. They all have a similar theme, I was trying to give the appearance of simple games in a desktop window similar to the old Windows entertainment pack games in Windows 3.1. Sound has not been implemented yet and there are some issues with a few of the apps, but they do all work.

Navigating the 'GUI':

It's pretty easy - Move the pointer around with the joystick and click on the icon you want to launch by pressing the joystick button. The one thing that's not so obvious is how to close out of a game or app without resetting the entire program. Hit game select (F1 in Stella) to exit a game and get your cursor arrow back, you can then click on the top right corner of the window to close it and get back to the main desktop.

Here's the games:

Boulder. In this game you have to run around and avoid the bouncing boulder while at the same time shooting it to score points. You get one life, if you're hit by the boulder you die and the game ends.
 
Pong. You play against the computer, and whoever gets five points first wins the match. The computer has a basic AI and will occassionally miss.

Tubes. The gameplay is based on a game that atari2600land wrote a few years ago called "Smiley", it's one of my favorites from him. There are four pipes in each corner of the playfield, and you control a ball that can roll between the four corners. The object is to keep the bombs from entering the tubes by rolling the ball back and forth between the tubes. Once you start rolling, you can't change direction until you hit a corner. If three bombs explode the game ends.

Mountain. In this game, you have move your crosshair to shoot the bombs falling out of the sky before they hit the mountain. You score one point for each bomb hit. Once three hit the mountain and explode the game ends.

Alley. This is similar in gameplay to Hogan's Alley. You control a crosshair looking at a building with nine windows. Shoot the bad guys, don't shoot the friendly people. You get three lives and score one point for each bad guy shot. You get a few seconds to react, if you don't shoot a bad guy in time you lose a life and if you shoot a friendly person you lose a life.

Here's the Apps:

Tone Toy. It's pretty much exactly the same code that Random Terrain wrote years ago, you can change tones and frequencies to select a sound for a bB game.

Calculator. It's batari's code from his "bB Calc" demo he wrote a few years ago. It works, but I had trouble modifying it to work with pfres set to 32 so the cursor doesn't hover over the numbers like it should.

Paintbrush. I also had a hard time getting this to work properly with the higher playfield resolution. The ball remains pretty close to where the next playfield block is painted, but it's not perfect.