You know how sometimes you play a game and you call it "experimental" and it's really cool because it stands out and there's nothing like it and you're glad someone is doing neat, innovative things? And then other times you hear the phrase "experimental" said, but you've got a different tone of voice and it's more of a "I feel like my wallet and my time have just been vivisected" fashion?
Yeah this one's the latter. Your hotel has a core you defend at all costs, every "world" has its own sound patterns per block, and a beat rate the game matches with all the little rooms you build onto it. Some give you more cash, others fire at enemies, some are kamikaze or healing rooms, and every 5 levels there's a boss. That's it. Nothing else. It's modified tower defense but your towers are basically a music tracker. Not even a challenge mode or endless play for when you finish the rather-short campaign. (The closest you get to this is the later worlds all have a gimmick "no weapon/kamikaze-only" stage which, overall, is less fun than it sounds.)
Also the music sounds really interesting in the trailer, right? Yeah, nothing you make in-game is going to sound so cool and trip-hoppy. It's instead going to sound like an auditory seizure. On the subject of music: do you like the Wu-Tang Clan? Get ready to groan at a ♥♥♥♥load of references to their songs in the between-level text. Which... isn't even on every stage. The game couldn't come up with 25 single-sentence lines of dialogue, that's actually the perfect metaphor for how this feels more like a gimmick than a game.