Playstation.Blog: "In developing Quell Memento for PS Vita, we realized that the project was first started 20 years ago! You see, the game prototype was originally created on an Amstrad CPC computer, way back in 1993! Having said that, it was very different back then – it was called “Last of the Smileys” and was a lot more 8-bit in style. As we set about improving the game for a modern release, we knew that we wanted to have a much more unique visual style. After much discussion, we decided upon a gentle old-fashioned look, in part because we read that the human brain is more intelligent when it is relaxed."