I just finished the demo and just wanted to share my impressions and feedback:
1. Art and music
As always the art is top notch and I really like the new artist you're working with. As much as I love the art of Robin Morningwood, it's still nice to see something new and fresh and I think you picked the right artist for this game. I especially like the camera movements and simple animations during the sexy scenes!
The music is a little basic, but I like the futuristic, electronic vibe. Though, I have to say, none of the tracks really stood out to me (unlike Robin Morningwood where the main track became memorable over time).
I also want to note that the backtround art is absolutely phenomenal and I frequently hid the UI just to marvel at the amazing attention to detail. I don't know if animating the background art is feasible, but it would (of course) be amazing if you can pull this off!
2. Story
Not much to say here, the story is very straightforward and I don't think we expect anything groundbreaking from a bara game. With that said, I do like that the setting is clearly sci-fi and that we get to travel around the different zones. All in all, I think the story does what it needs to so far.
3. Gameplay
I haven't played tower defender games so take my opinion with a grain of salt. All in all I thought the gameplay has a lot of potential, though at times I was a little bored by waiting for battles to resolve. I assume this is only going to improve as you create more and more interesting units and enemies. One thing that does concern me, though, is that because this is the main gameplay if for some reason it doesn't click with the players it would be to the detriment to the game (unlike Robin where you had a variety of minigames).
I'm trying to think of any useful recommendations for you guys, but because I've no experience with the genre I can't give concrete feedback. What I'm trying to say is: playtest the tower defender levels, think of as many interesting mechanics and gimmicks as you can, because unlike Robin the game's appeal will rest entirely on this gameplay alone, and I really want this to be the best bara game ever!
Speaking of the best gameplay ever, I felt like the secret base gameplay was a little lackluster. I initally thought we would have the crew living in the base (which would have been so cool!) but then I realized that it's actually just some of the grunts we saw during the tower defense gameplay. Generally I'm not too excited about the secret base, even though I spent quite a bit of time playing around with it. I know it's has that mobile game "set and forget" gameplay to it, but I just feel like it's gonna get very repetitive very quickly.
And last but not least, I just want to mention that the "Delete" (or OK) ability during tower defense is very confusing: I often can't tell who I'm actually clicking on. The icon is way too big and I often think the lower left corner of the box is where the cursor is pointing, only to discover this is not the case. Maybe decrease the size and make it clearer where we're clicking?
This is it! I wish you all the best with the development of the game!