DS-Xtreme 4Gb (World) (v1.1.0) (Unl) [b] is a Nintendo DS game developed by DS-Xtreme. It is a homebrew game for the DS, and is the first version of the game. It is an action-adventure game, with a top-down view, and features a variety of levels and challenges. The game is set in a world of floating islands, and the player must make their way through these islands, while battling enemies and solving puzzles. The player can also customize their character, as well as purchase items and equipment. The game also includes an online multiplayer mode, allowing players to compete or cooperate with each other. The Japanese title for this game is DS-Xtreme 4GB (ワールド) (バージョン1.1.0) (Unl) [b]. This game is a great way to enjoy some classic action-adventure gameplay on the Nintendo DS.