PALPS is a Nintendo unreleased Disk System exclusive game that many don’t know about. It was a very novel game. Basically it was an action game, where the player could not control the hero’s movement during play. The hero moves according to the player’s programmed movements. You defeat enemies with bullets and sometimes there will be an obstacle to deal with. As you advance through the game, the variety of icon tips increases.
The hero’s movement was programmed exclusively with the simplified language part that was said to be more intuitive and advanced than Family Basic. When it appeared on japanese magazines the game was said to not be ready to be seen at all and you can see below some screenshots from an early build. It was so early in development that the genre was still largely undecided. It’s still unknown why Nintendo decided to never release this piece of software.
Very grateful to Susumu for the translation from japanese.