Before I begin, I want to say that I have been mostly loving this game, and I think at the end of the day, it's a great fan game that puts a creative spin on the usual Changed formula. However, once I got to the latter half of what's currently available, the game did begin to fall apart a little with some frustrating design choices that, if not fixed, I think will deter people from progressing any further, even if/when more content is added later down the line.
The Good: Starting with what I liked about the game, Transfur Chase is at its absolute best during the runner moments. Needing to make decisions on the fly, seeing if you can quickly grab an item as you pass by it, your reflexes being put to the test, it's all great. Especially in combination with the music! I'd love for this game's music to be made available on somewhere like YouTube, because it's SO GOOD! I could easily see myself listening to it outside of the game. The items are all good; none of them seemed to be entirely useless or overpowered. And of course, it's always a joy to see Puro!
The Bad: By far the worst area of the game at this moment is the Tiger Shark boss fight. The fight relies way too heavily on RNG when dropping the pipes and healing syringes. Some runs I had 4 pipes within a minute, and other runs I had no pipes after 2+ minutes. Some runs I had healing syringes galore and hardly any pipes, and other runs it was vice versa. If you get hit once by either the shark fins or the fish the Tiger Shark throws at you and you have no healing syringes, all you can do is take the gradual damage and hope that the RNG drops you a syringe before it's game over. A huge aspect of getting past this part is having good RNG, which is an absolutely terrible design approach to take for a boss fight. A good boss fight should test things like a player's movements, resource management, accuracy, and more. It shouldn't be a test of luck. To be fair, the Tiger Shark boss fight does test you on movement, resource management, accuracy when throwing things, etc., but the fact you have to get lucky on top of all that ruins this fight. Things become much better when you get the ball rolling and Puro starts handing items to you at a regular pace, since at that point the RNG of whether you'll get any items at all goes away. Even if you do manage to beat this fight though, there's a chance you may need to do it all over again, which brings me to my next point: The saves.
Saves should happen immediately after a level or boss fight is done, not until after a cutscene plays. I streamed this game during the Tiger Shark boss fight (not trying to self promo, I swear I'm bringing this up for a reason). I beat the Tiger Shark boss fight, and I had to Alt Tab to fix something with my stream. Alt Tabbing brought up the main menu, and I misclicked when returning to the game and went back to the lobby area before the "Game Saved" pop up showed. To be fair, given the Tiger Shark boss fight is the last thing the game has to offer for the time being, I don't even know if a save happens after the cutscene, but still. This applies to contexts outside of streaming too. What happens if someone beats the fight, but their power goes out during the cutscene before the game can save? They have to redo that fight all over again. It's imperative that game saves happen right after a level for all moments of the game. I think it would also be a good change to have it be so that the main menu can't show up in the middle of a cutscene or dialogue moment. Maybe someone could still pause the cutscene/dialogue moment, but just have "paused" on the screen instead of the main menu or something like that.
A small hiccup I ran into was when you had to stick behind Puro while he defended you against the one hit kill stingrays. I'll admit that this could be me, but I figured I'd bring this up anyway. I got stuck for a while thinking you had to stun the stingrays with items in order to get to the door. Only after my chat and I re-read Puro saying he'd keep us safe if we ran into trouble did we think to stick behind Puro. Maybe some form of emphasis on the "I'll protect you" part could be good, like bolding or italicizing that line. Especially since, although it's not as likely to happen, there's a chance someone could play Transfur Chase while not having played Changed, so they wouldn't be able to think about this moment in Changed to have an idea on what to do in this game.
Overall Thoughts: Overall, I still really enjoyed my time with this game despite the gripes I had with it towards the end of what's currently available. But it's imperative that at minimum the Tiger Shark boss fight is updated so that it isn't so luck based. In its current form, this fight will deter people from progressing any further. Someone from my chat suggested that whenever the Tiger Shark roars, there's a guaranteed pipe and healing syringe drop, but they both appear on opposite ends of the map so the player has to choose health or damage before the next attack comes. I really want to see this game succeed! Like I said at the beginning, this is a great creative spin on Changed, and if the fixes are done, I could totally see myself sticking around until the game is fully complete!