First I was wow, that feature is a gimmick set your own checkpoints, but then the levels that required reset manipulation to beat: I was like "yeah, now I can roll with that". Unfortunately they where over way too quickly, basically when things started to get interesting.
A little too easy, but I always appreciate it if I don't have to beet some kaizo level to get the full experience.
(btw I am working on a platformer script for games similar to this *end of shameless self promotion*)