On my second playthrough now. If I might make one suggestion – starting again from scratch after getting used to the late game does feel a little frustrating. In particular, I found myself really missing the ability to dash or run on the ship or while in port before I had the chance to unlock that upgrade.
As an alternative, what if you made the “Flex Boots” upgrade specifically about the EVA suit segments? In other words, allow the player to dash whenever they’re in a breathable atmosphere from the start, but take away that ability when they’re in a spacesuit (since, you know, it’s a heavy spacesuit.) You could then make the “Flex Boots” upgrade about allowing the player to dash while in the spacesuit, rather than just locking that ability in general. Does that make sense?