Space Invaders

Boots into attract mode. Insert a coin (5 or C), press 1 for 1P Start, or use the on-screen controls to play. Left/Right arrows move, Space fires. Click the screen first so it captures the keyboard. The page starts muted; click Sound to hear it, and the effects play during real play. Open the debugger to single-step the 8080, read and write registers and memory, and set breakpoints.