Download the JAR to your phone either directly or via your computer. Sometimes you need a JAD (basically a shortcut) to download the JAR.
Opening a JNLP will download the appropriate packages and run the game.
You can also save the JNLP to disk, and click on it to start the game.
A Jar can be downloaded and run immediately. Save the jar and click on it to run.
Tomatic Games is a website where I host some of my better games and gamedev related software. Gamedev is something I do in my spare time. I prefer a keep it simple and short approach to game design: most of these games took between a few hours and a few days to create. In this game collection you will find various experiments in gameplay, graphics, game engines, and procedural generation.
-- Boris van Schooten