LocoRoco: Midnight Carnival

 is a platform/puzzle game developed by Japan Studio and published by Sony Computer Entertainment in late 2009 for the Sony PSP. The game featured a single level pack, but with the shut down of the PSP frontend online shop it can no longer be obtained on the original console. The PS Vita release of the PSP version allows to download the DLC, but to be able to get it on the original hardware a Sony PS3 is needed (see below for details).

How to obtain
The DLC can still be obtained on the PS Vita release from the Playstation Store or, on the PSP, by purchasing the PSP version on a Playstation 3 system and then transferring it on the handheld console.

A guide on how to transfer content can be found here.