It would be really nice if there was a score, for example points for the distance you travelled and the enemies killed. You could save highscores to enable the players to compare their result with the previous one or even with other players.
Reviews for "Fly Evade [Early Access]"
It still needs a lot of content, but taking to consideration this is just an early access I'm sure it can be a pretty good game after some updates if you spend enough time into it, good work so far!