I get how to put out the portals but using them to get rid of the asteroids is way to hard. But i think that with some balancing this game could be really fun!
For me it was easy (most probably) because i made it and played it all day.... I gotta thing about others too:)
maybe you could make a tutorial on some good strategies, i think that would help
or maybe make a yt vid with me playing it and playing it in the background of the main menu?
Yeah that could work