Editing Tetris DS Puzzle Mode

|genre=[[Genre#Puzzle games|Puzzle]]

'''''Tetris DS Puzzle Mode''''' was an online {{wp|Adobe Flash|Flash}} advergame that appeared on the [[Nintendo Arcade]] section of [[Nintendo]]'s official website, where it was simply listed as '''''[[Tetris DS]]'''''.<ref>[https://web.archive.org/web/20070911004647/http://www.nintendo.com/arcade Nintendo Arcade]. ''nintendo.com''. Archived September 11, 2007 via Wayback Machine. Retrieved December 27, 2017.</ref> It is meant to function as a demo for the [[Nintendo DS]] title of the same name, specifically its [[Tetris DS#Puzzle|Puzzle]] mode.

The game is themed after ''[[Super Mario Bros. 3]]'', using graphics of clouds, hills, and [[Semisolid Platform|colored blocks]] from that game to compose the background. Two [[Yoshi (species)|Green Yoshis]] using sprites from ''[[Yoshi's Cookie]]'' hold a big sign showing the level currently being played, and another one peeks from behind the game board.

Similarly to a game of ''{{wp|Tetris}}'', the goal in this game is to clear several rows of blocks by using two {{wp|tetromino}}s in the intended order. The player must first select the tetrimino, then choose a viable position to fit the gap in the blocks; the tetrimino then automatically falls into the gap. <span style="color:#3366FF">Straight</span> and <span style="color:red>Z-shaped</span> tetriminos have only two possible positions to choose from, while the rest (<span style="color:blue>J</span>-, <span style="color:orange>L</span>-, and <span style="color:purple">T</span>-shaped) have four. If the player mistakes a selection, they can choose to retry the level or go back to the level menu.

The game presents five levels that can be played in any order, and the game is won once all levels are completed. On both the title and congratulatory screens, the player can opt to visit the official ''Tetris DS'' website.