Thank you so much for not making this punishing, and making it quick to respawn when you die! I'm not sure if you've seen UFO50, but one of the games in that works similar to this, it's a really cool idea!
I found I could circumvent much of the puzzle aspect of the levels just by making an alternating ladder, so I think if you ever took it further you'd maybe need to find a way to reward players for not doing that. Great job overall!