This feels like a natural extension of the Hi-Jump ability. The moves are very well thought-out, and give it a sense of vertical movement that most Robobot armors lack. My only concern is that it feels a bit redundant with the Parasol armor already existing - it already fulfills a similar niche.
Careful! Gold Blocks are there for a reason. They are the equivalent to Grey Blocks for Kirby, you need an outside reasorce to break them. Letting a Mode break these blocks can and will break any Gold Block related puzzles. I am pretty sure that isn't a good idea.
hmm, yeah, i like this! it does differentiate itself from parasol mode enough that i can see them having different applications in the long run. i do think being able to break gold blocks is a bit too powerful for the ability, but that's a minor thing, and i really like this!