Finally completed the game, wow this is very nice! Interstellar waves in a game as the main gimmick? Sign me in! The game is a bit overwhelming at the start, but once you know what to do and what's happening, it turns to be a masterpiece in the jam. Love it soooo much! The graphics also reminds me of those old games I played as a kid, and that really works well with the "lack of directions", the music and the tone. Good job!
A few things to point out is that the HUD just doesn't match well with the game, feels like it is bringing down the first impression quite a bit. Also, there are so few things to pick up, the finally puzzle are a bit obvious and gave me an "o..kay? Expected?" kinda vibe. But these are just minor things and I am sure can be fixed easily.
Overall this is a very good game! Well done!