As promissed, here is my feedback.
Let's start with the good stuff. I really love your graphics they are awesome. Your game was fun to play and I really enjoyed it. You spend some time with the level design and really thought them through. I really liked how you gain the abilities over time and learn how to use them. Similar to our game, which you should enjoy ;)
Now to some not so good parts and how to improve them:
- Ok, the reason for this one might be the time, because starting from level 3, I think, there are no backgrounds anymore. It's a little sad, but it's also working without background quite nice. For the background in the first levels, it is not repeating perfectly, there is a hard cut and it is not filling the screen all the way to the bottom. So when you fall down, you see the edge of the picture.
- Some particle effects are not that good or I guess not finished. I'm not taking this into account because we also run out of time for that :D
- It's really sad that the dialogues are not working. I think they will present a story that's matching the theme. But like it is now I can't give you a high score for fulfilling the theme. I hope you understand that.
- The arrows are not really adding any value to the game other than, just go in the other direction the arrow is facing most of the time. I would remove them.
- Now to some points about the character controller, because I had the same struggles as you did. First of all, the collider on the character. I'm not sure if your character has a capsule collider or your terrain has rounded edges on the collider, or maybe both. But the character is slipping of the edge, which is not really nice. By using box colliders for both you can solve this problem. I know that some game dev videos tell you to use capsule colliders but that is only needed when you have ramps, which you clearly don't have.
- Your character has a fixed jump height. I'm assuming you are add an upwards force to your character to make him jump. This is ok, but you take away control from the player. It might be wanted, but most modern platformers use variable height. The longer you hold the button the higher you jump. I solved the issue by setting the upwards velocity of the player when I press the button. However, it was a little tricky with the double jump.
- The character is clearly strugglin with moving platforms :D I think you set the parent of the character transform to the moving platform and this somehow disabled the character from moving. I solved this issue by adding the velocity of the moving platform to the velocity of the player when he is touching it. This way you are still able to move.
- It was a little harsh to take the double jump away from the player after he learned it. He got it back later in the level, but I think it is not good to take away abilities.
- I think the reason for the last point was also the time, but your game stops quite abrupt.
I hope this feedback helps you.
Would love if you give our game a try. I really think you will love it due being very similar ;) I really enjoyed your game.