A well made 'unfair' platformer, incorporating many elements of what makes such games frustrating but also rewarding once completed. The beginning aspect was thoroughly entertaining. Movement was tight and visuals were appealing and contributed well to the experience.
The beginning audio was entertaining, as stated prior, but I felt like an actual script was definitely needed. It was clearly obvious what you were aiming to do, and with some more focus on what was being said to delay the player for as long as possible would be a better use than just rambling off the mic. Secondly, the key part of unfair platformers is determining solutions and remembering sequences. In notable titles, most famously Kaizo Mario World, the game appears impossible but through trial and error with a decent memory you can even do the game deathless. Relying on 'leaps of faith' as you did especially on the last level don't engage the player as much. Think of unfair platformers as Puzzle Games, not traditional platformers.
Overall, this was a good submission and take on the task set. With some work on the level design and writing, I think that this has a lot of potential. Great effort.