ketm software package provides old school 2D-scrolling shooter, you can install in your Ubuntu 14.04 LTS (Trusty Tahr) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install ketm
ketm is installed in your system.
Make ensure the ketm package were installed using the commands given below,
$ sudo dpkg-query -l | grep ketm *
You will get with ketm package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Games |
| Package | ketm |
| Version | 0.0.6-22 |
| Description | old school 2D-scrolling shooter |
| Sub Section | Games |