Graphics and audio were on point!
As for how it played, it felt like the game was asking for a lot more precision than the controls were providing. Even on level 1, it was very difficult to course correct jumps. Barely tapping the keys often resulted in over-correction by a deadly margin.
Add the modifiers on top of that and getting even simple jumps done becomes ridiculously arduous. Maybe that was the point, but it felt like it went too far.