Terrordactyls is currently in its alpha stages. It was originally built as a college project and is currently in its evolutionary stage to a full-fledged game. The final version will feature a character select, level progression and difficulty setting, as well as a greater range of enemies to fight. I apologise for the horrendous difficulty, in fact to date only one person in the world has managed to complete it; my lecturer Jon Burton. What a magnificent beast he is.
I hope to get round to releasing a beta version over the summer, then finish the game at some point at university over the next five years.