I remember playing the Frenetic Five games a few years ago. They date back a few decades, and were a funny take on superheroes with characters that had pretty under-powered powers, always taking on villains with similarly silly ideas.
I never beat any of those games without hints, but I appreciated the vibes and felt they were internally consistent.
Although I've forgotten a lot about those games, I was happy to see a sequel/prequel released. This is a pretty fun game about trying to open up a vault.
It's a game that requires leaps of intuition for almost every step, which is a style that is both frustrating and rewarding. Given enough time, I probably would have wanted to play this off and on for a week or more, but instead I played an hour or so before using some hints that Dan Fabulich wrote on Intfiction.
I think the author succeeded in their goal, if their goal was to please fans of the former games and create a difficult one-room game centered on exploration and experimentation. I do like easier games myself, or ones centered on learning complex systems with easy individual parts, but I appreciate the vision of this game and hope the author keeps their intention to make more.
When this first came out in Parsercomp, I heard people talking about bugs, but the author seems to have patched them.