Embarcadero has four mobile arcade game projects for Delphi in Object Pascal available for free over on GitHub. All of the projects run on Android, IOS, OSX, and Windows. One of the projects is called Space Rocks and I modified this project to allow the player to customize the game at runtime (for more info about Space Rocks check out this blog post). The modified game is called Deep Space Rocks. I also re-skinned the game a but with a new background, player character, and enemy characters.