I love how simple and how well done is this game at the same time. The fact that resets all the level when you die is a big plus; because you can start memorizing the obstacles and it's pattern, even start doing some muscle memory and getting the music as a reference of when you should jump again, this way you start getting farther on each try.
Something I would add is a "death counter" it could be funny to see how many times I tried, even it could encourage the player to do the typical "okey 5 more tries" or "well, 46 tries is an ugly number, let's make it 50".
Well done!