Thaks for the feedback!
The idea was that the player has to find the levels twist. Once you figured out how the levels can be solved, it becomes very easy. My best run so far was with 1:15 on the clock and 0 resets. It is about learning and mastering the mechanics and the level design. There are 10 levels, the last 2 are a bit tricky. Once you find the solution they are simple, but you to accumulate time from the previous levels.