Hey, Im very happy to give you some feedback on this. Please consider joining the Discord as its the easiest way to communicate and give/receive feedback. Otherwise Im just jumping between old threads and sites. 

Hey, I had some time this morning and just picked this for a bit of a play. This is not an extensive playtest but hopefully there is some feedback in here that proves useful. As I have said to others, on the Discord everyone gets their own thread and feedback is given there.

Gameplay

• The camera feels slightly off-centre rather than properly fixed on the character.
• During the tutorial, you use E to interact with everything. However, when I exited the tutorial and tried to enter the next level, I naturally pressed E again. Turns out you need to press SPACE. It's also not immediately obvious that these are level tiles.
• Level 1.2 had a good puzzle. I thought the difficulty built quite nicely and incrementally on the previous levels.
• On the level select screen, the character almost seems to slide around like they're on ice in the central area. They also move unusually fast in certain areas, almost like they're teleporting.

Art and Audio

• I think the art is charming, but it slightly lacks cohesion. For example, the keys and coins look like they're from the same asset pack, whereas the portals, lanterns and character look like they're from different ones. None of them look bad individually, they just seem quite different. The same goes for the background art outside the playable area.
• The music goes really well with the dark green backgrounds. They complement each other nicely and give me that slightly creepy, sneaky, dangerous feeling, almost like an underwater sewer level.

Bugs

• The game feels like it's running at a low framerate, making everything seem slightly jittery. I think you're doing your game a disservice here, so it's worth investigating.
• If you progress through a level, pause, open the settings menu and then close it, everything in the level resets, but your character remains in the same position. Marking this one in bold as its quite significant.