Haha, "The End" is a special level that incorporates some of the most obscure mechanics the player hopefully has picked up from the previous levels, like the bounce jump and tunnel surfing. You indeed have to do two bounce jumps, and the second one does require some timing, but there is quite a bit of leeway.
I am very happy to hear you enjoyed it. Also, let me commend you for rating 120+ games - you are doing a great service to the community.
My background is backend programming, and this is my first try at a real game concept, so art and audio are definitely two of my weakest points. Working solo on the game meant I had to keep these things simple, and instead focus on making the gameplay fun. Maybe I should try teaming up with an artist in a future jam.
Thank you so much for playing the game and providing valuable feedback. :)