Thanks for playing and for your comments! And I think you are correct that sometimes all lanes can be full. Part of that is probably due to the wonky way that the enemies 'wake up' (proximity to the player). Based on a bit of investigation, it appears that if you get hit at the wrong spot (which stops the player), some enemies can wake up earlier than others, which causes the full-lane blockage when the intent wasn't to force the players to deal with that kind of situation, so I think we will need to look closer at those kinds of situations for sure. (if you are somehow able to maintain speed and dodge everyone, then there *should* be a sliver of space to squeeze by.. at least that was the intent).
Thanks for the feedback!