Marathon 23: Well done. Indeed, the two pick-up skills are red herrings. But it's my fault, I shouldn't have added them. To fix the issue, I added two “steel” blocks.
Marathon 24: Good analysis. Solution intended.
Marathon 25: Once again, good analysis of the level. I like to imagine puzzles with the gilder and the floater (the level
Tic et tac, for example). As these are permanent skills, you can’t go back by assigning a parachute to a glider, and vice versa. This can become a real headache. I had a lot of fun designing it, this level.
Furthermore, I suggest you look at my solution, a little simpler than yours!
Marathon 26: Yes, well done!