Boots straight to Tempest attract mode -- the colour vector tube with the drifting demo play and the ATARI TEMPEST title. Press 5 (or C) to insert a coin and 1 to start; rotate the spinner with Left/Right, fire with Space, superzapper with Shift. Click the screen first so it captures the keyboard. Open the debugger to single-step the 6502, read and write registers and memory, watch the AVG display list in vector RAM, and set breakpoints and write watchpoints.