I played this game on my stream (VOD), and you were there too :)
Overall, we had a lot of fun playing this game! I think this is one of the game that we'll want to play even after Feedback Quest is over.
It was amazing how many different minigames there were that we encountered!
We were really happy that we could play as Manilla later on, though it would be nice to also be able to play her in the earlier levels with the bash and blast skills like we did with Randy.
During the last stage we were in (fighting the bad guy), it felt a little odd that we would change characters depending on who won the minigame. For example, we started with Manilla, but we lost the minigame, and we started controlling Randy. After Randy lost a minigame, we were controlling Manilla.
Also, you mentioned that if Randy & Manilla tied, then we would have to restart that level. I suggest having an odd number of minigames, or maybe letting the player choose who would move on to fight the boss.
Another suggestion for improvement is in the spaceflight part. Maybe have an autopilot for people who might have trouble like we did? I think we spent quite a while trying to find the original route and getting to the next point..
This is a really fun game, and kudos to you for all the hard work making the various different games and levels!