In Diamond Rush, players are presented with a grid where gems of different shapes and colors fall from the top. The goal is to rotate and arrange these gems to create sets of three or more in a row, either horizontally or vertically. As players progress through levels, new gem types and obstacles are introduced, such as locked gems, ice blocks, and special power-ups.

Developed by the legendary French studio , Diamond Rush (often distributed as Diamond Rush 3D on higher-end handsets) was released around 2006. While the premise sounds simple—collect diamonds and reach the exit—the execution was masterful.

Subreddits like r/emulation or r/j2me often have pinned posts with links to curated, virus-scanned ROM packs. These are usually higher quality than random Google results.