^^thanks for the feedback. I think the problem is that there is no proper wall - just cars and gaps between them can make the player stuck.
The gameplay evolved (like often) by accident. And I was also surprised that it was fun to me. But for the Jam I'd to implement the game in a way I'm not used to be. May in future I'll recreate that game (when I have more time and when I'm not limited to Bolt-1 ^^).