Gem Rainbow is a new free-to-play arcade game developed by Pro I for Android devices. The game is all about testing your reaction time and collecting points by tapping the button that corresponds to the picture displayed on the screen. With a limited time frame, players must aim to score as many points as possible.

The game features a vibrant and colorful design, with amazing graphics that enhance the overall gameplay experience. The controls are simple and easy to understand, making it accessible for players of all ages. The addicting gameplay will keep you engaged for hours, making it a great time killer.

Overall, Gem Rainbow is a great addition to the arcade game genre. It's free to download and play, and with its engaging gameplay and colorful design, it's definitely worth checking out.