Trow's Space

In this game you must control a ship with the character "Trow". You must protect your zone of space, the game is infinite passing waves or "Rounds" and you must destroy the alien bases scattered through space, destroying their 4 towers that shoot you, in these extraterrestrial bases will leave small ships that try to knock you down, you must avoid them Or destroy them.
When you destroy all the extraterrestrial bases increase the level of difficulty and advance to the next round where you will add more and more new enemies.
You must avoid space worms. They are huge and indestructible, these will open wormholes in space and can destroy or push you far but far from where you were.