Guardian

Guardian is an arcade style horizontal shooter. Try to defend your planet and protect for population from an ongoing alien invasion. Destroy alien landers before they abduct your population and turn them into mutants that are bent on destroying you! While you're at it, protect yourself from bombers, motherships, and swarmers as they attempt to ruin your day. Still think it's too easy? Configure alien speeds and appearance in Settings to optimize your experience. How long can you survive?