This is a very polished game that feels like it could have belonged somewhat in the game "Unexplored". The shooting is overt the top and satisfying. Needs a little bit more polish for a definitive game though.
I do wish there was a bit more to the conjoined pair though. Or second stage. The second stage has no limits, functions as an extra life, has better and more refined mobility, and is far far stronger. I do wish there was a timelimit on it though. Or something else to balance it out. Like going back to the first stage is less punishing.
One of the things that might be interesting is that the second stage functions as a combo multiplier of sorts. 30 seconds of boss and ass kicking firepower with enhanced multiplier to give the game short bursts of extra OOOMPFHHHH. Or maybe add this as a third stage.