Haha, it is exactly as advertised! The game slowly takes you down a path towards agony and the levels start to become excruciatingly difficult towards the end. I reached my skill limit at around level 38.
The game starts off simple but steadily through the levels an interesting set of movement mechanics is introduced. The design and amount of levels is impressive, every movement mechanic has been explored and used in creative ways. Each new level feels unique and adds to the difficulty in small increments.
I did feel that sometimes the collision with hazards was inconsistent although that may just be the nature of the 84x48 resolution.
The game adheres the jam rules well.