Play Hydorah
I am lately addicted to Hydorah. Hydorah is a free side-scrolling shooter. The game features great graphics and music and is quite a challenge to play.
If you fought the Bydo and shooted the Bacterians in the core, you are ready for the war against the evil god Hydorah. Choose the path to follow and fight planet by planet against hordes of meroptians.
Download & Information: http://www.locomalito.com/juegos_hydorah.php
Hydorah Screenshot