It's a bit sad to cut down our brother tree to move on but it's an interesting feature :) However I found that sitting on ledge kind of break the rythme of the game, especially for an endless runners. Maybe you should have allow player to create bridge in the air (don't know).

Cool game, and an interesting take on endless runners. I like the idea, and how it feels like the further you go, the more protected you are, but also the harder the game gets in response. The "That Tree had a Child" bit is also cute, and doesn't get old, since it doesn't happen all the time. The game has got a lot of personality. However, there are some polish things that are missing-- There are parts of the game where all you can do is place a bridge, if you walk up to a ledge. If that's the case, why should I need to hit a button? It's not like I have a choice to do it or not. The game should handle that automatically. Also, I can't see my score after I die, since the game immediately restarts, so I won't know what my score was, because I don't really have the time to look at it when the game is still running. What you have is really cool, but always remember to keep player convenience in mind!