After two weeks of heavy development (I've even worked on Saturdays on this), I can finally show an advanced.
I created 3 new characters: a "chanchito"(a pig), an Ufo and a satellite, I've also added some variations in the formation of the enemy and stuff.
Hope you enjoy it, I need time to finish the final story, create more characters, bosses and environments. How quick were the two-week vacation... lol
I had problems with some rotations and artificial intelligence from the satellites so that each shoot at random and not all at once, also with the movement as a sine function, but it was fun.
Here some pics from my WIP:
1.- The "Chanchito":





Play the game!