Homebrew developer Fujah has come up with a homebrew application for the Sony PlayStation Portable which allows users to create maps for certain games. LuaTileArranger, now version 0.3, is intuitive and similar to photoshop according to Fujah. It's in German, so knowledge of the language helps.

The download is packed with sprites of Boulder Dash, Dyna Blaster and Zelda that you can use in your customized maps. Unfortunately, LuaTileArranger's code is said to be messy and speed is supposed to suffer. If that isn't enough to keep you away, and a German help file doesn't sound intimidating, get LuaTileArranger below.