Mad City is a maze/puzzle game.

Here comes an update of Stravingo’s “Setsuzoku no Puzzle”.

The goal is to remove all the tiles on the screen by connecting two tiles that have the same color and the same symbol. The link between the two tiles can have at most two corners.

Changes:

– There is now three difficulty modes, instead of the single “Normal” mode. In “Easy” mode, there is few different tiles at first, but a new tile is added every 5 levels. The “Difficult” mode is for those who want a challenging game. In the three modes, the time speeds up at each level.
– In “Easy” and “Normal” modes, the tiles are now placed in 20 different patterns.
– There is now three highscores tables saved on the DS and saved on the net on leaderboard.palib.info to handle the best scores of the three difficulty modes.
– When you do a highscore, you have now the choice to send it right now on leaderboard.palib.info or to send it later if you are not close to a wifi access point. In order to send unsent scores, go to the highscores screen in the game and press X. Instructions are provided on this screen, where unsent scores are preceded by a red “L”.
The current level is now automatically saved, so you can continue to play a previous game when you choose “Play”.
– Some minor graphical and animation changes.

http://stravingo.over-blog.fr/

WusteroiDS is a sprite free asteroid game by nameless.

DSChess is a homebrew chess game for the Nintendo DS. It builds upon a very strong open source chess engine called Fruit 2.1 by Fabien Letouzey (now commercial: www.fruitchess.com). The engine was changed to meet the requirements of the Nintendo DS.

Treasures of Gaia allows you to browse on your DS an extremely detailed map of the entire world thanks to Google Maps (a Wifi connection is mandatory). The whole world is now in your DS! You can scroll the map with the pad or the stylus. Use the L/R buttons for zooming in and out. Up to twenty zoom levels are available, depending on the area (Note that this cartographic engine will be implemented in DS Weather Report very soon, so you can see the weather for any part of the world, and not only Europe).

The purpose of Treasures of Gaia is to let you appreciate the beauty of our world. You can freely travel where you want, but special places locations are provided: the list of the 851 places inscribed by the UNESCO on the World Heritage List for their outstanding universal value to humanity. These places are indicated on the map. To obtain information about a place, you only have to touch its location with the stylus. The information are displayed on the upper screen, where you can switch between a picture of the place, a description, or its location on a global map.

You can also browse the whole list sorted by countries by pressing the Y button. When you click on a place in the list, the same information are displayed on the upper screen, and you can directly go to this location by touching the “Go!” button.

This is a short but challenging 50 level puzzle & platform game. Take out the bad guys on each screen and head for the exit.

Scoglionario is a question based game, based on the famous “Who wants to be a millionaire” (“Chi vuole essere milionario” in italian) tv show. The player is asked increasingly difficult general knowledge questions by the host. Questions are multiple choice: four possible answers are given and the player must choose the correct one. On answering the first question correctly, the player wins 100 (dollars or euro, it is the same -> nothing real). Subsequent questions are played for increasingly large sums (roughly doubling at each turn). If you answer bad, you lose and win the lower (yellow colored) sum.

Dazzle Sparkle is a very basic Bejeweled clone for the Nintendo DS. This game is freeware.

Pro-SUDOKU is a Sudoku game for the NDS by Ludo6431.

DreamZZT is an open-source ZZT engine for Mac OS X, Microsoft Windows, Linux, and the SEGA Dreamcast. ZZT was an ANSI-based game creation system created by Epic Megagames’ Tim Sweeny in 1990. The original release included 6 worlds, including the shareware world The Town of ZZT. It also included a built-in game editor, allowing for the creation of new games.

Not quite an emulator, but most matching with this category.