Jump Kid is a free retro platformer game developed by thasmobi for Android devices. The game is set in a world where a girl's kid has been taken away, and your task is to help her get the kid back. The game features a classic arcade-style gameplay, where you have to jump on enemies to kill them and beat the boss at the end of each world.

One of the unique features of Jump Kid is that on every level, you start with two stars. If you lose a life, you are down to one star. However, you can collect the star that appears at the end of each level to try and keep all three stars. The game is inspired by old-school games like Gianna Sisters and Bloo Kid, and features 8-bit graphics and fantastic chiptune music.

Overall, Jump Kid is an enjoyable game that is easy to pick up and play. However, it can be challenging at times, which adds to the fun. The game is free to play, but there are in-game ads. If you want to support the developer and unlock the full version without ads, you can make a purchase in the app.