This very simple game was written in Javascript. The web version includes touch controls, so it can be played on any phone. There are sounds in the game as well. The code can be found on github mkondel/alienstalker.
A button shoots plasma. B button launches a Hamikazee. If a hamster explodes in the woods, does it do more damage than you gun? No way to find out, there is only you on this level.