Literally made an account so I can comment, lol. Hi!
First of all, I am incredibly proud of you. The game is really fun, and shows the love that was poured into it, as well as the potential. Your eye for colour palettes as well as your unique visual style fit this game, as well as your inspirations.
I played this game in two sessions, the first was when I was feeling sick and irate, and decided to stop so I could be level headed and give a fair criticism, please forgive me if I forget anything.
The X slide is extremely fun, I want it in every game from now on. Maybe further upgrades in the full game could have Lana slide in mid air as well, for better mobility?
the attack is a bit on the short side, which took a bit to get used to, especially against the drill enemies and the miniboss, but getting the upgrade helped with the attack range problem. It might be a personal preference, though, and I'm certain it's again one of those upgrade-over-time things in the full game.
The writing, although brief from what we got, feels good. Characters feel like people, and there's a sense of a greater mystery under the surface. The enemy design is also great. (My favourite is the forklift enemy)
The levels can be a bit overwhelming at first brush, but that's just the trapping of the genre and my anxiety speaking, so I can't blame you much for that. Thought I should at least mention it though.
Some of the hitboxes on some of the platform types can be a bit iffy, they're designed in a way that makes it look like you can jump right through them, but their hitbox is the standard rectangle, and it is slight jarring. It took me out of the world when that happened.(pictured below: example of the platform im talking about)
Speaking of hitboxes, a few of the ladders have an iffy one. I've especially had problems with the one in the bottom left of the first room of the construction zone, near the save point and the drill enemy, and the ladder in the side room with the weight enemy/breakable blocks puzzle, with the drink treasure chest at the bottom. I hope that is a specific enough description!
To sum up, I've really enjoyed playing the demo for cycle, even though the secret boss kicked my butt (im a fake gamer gurl...)
I'm insanely proud of you for creating this, and continuing to create this, and I am behind you every step of the way
Good job, I can't wait to see the finished product <3