From GameBrew - a wiki dedicated to Video Game Homebrew.
Amuz DS is a homebrew puzzle game based on the concept of Zuma, a tile-matching puzzle game originally developed by PopCap Games.
The objective of Amuz is to eliminate all of the balls rolling around the screen along a given path with other balls, before these balls reach the yellow skull structure at end of the path.
To prevent the balls from reaching the skull, you can eliminate the balls by firing a colored ball from the stone frog idol's mouth towards the chain of balls that will continue to push forward. When three or more of the same color come in contact, they vanish from the chain. The level is completed when all the balls are cleared.
It has a total of 4 levels.
Stylus - Aim
Up - Fire
Start - Restart
Tested on FlashCard DSTT/TTDS with Firmware 1.17.