This little homebrew toy from ZX81 is another Etch-A-Sketch game for the Sony PlayStation Portable. It basically emulates the stuff you can on an Etch-A-Sketch, except of the :shake to clear the screen" part. Here are the controls:

* Cross - Draw mode (on/off)
* Triangle - Erase mode (on/off)
* Cursor - Move on the magic screen
* Analog - Move on the magic screen
* Circle - Increment step
* Square - Decrement step
* Select - Menu