Over the last few weeks I've added quite a bit to Scourge of Tethys like a scoreboard, controller support, animated enemies and a better difficulty curve
You can now buy it from itch.io for $1 http://jon-dog.itch.io/scourge-of-tethys
Over the last few weeks I've been working on a space shooter game called Scourge of Tethys, you can buy it from itch.io for a pay what you want price http://jon-dog.itch.io/scourge-of-tethys
It can also be played online at
Kongregate: http://www.kongregate.com/games/Jon_Dog/scourge-of-tethys
Gamejolt: http://gamejolt.com/games/shooter/scourge-of-tethys/30691/