This was really nice platform made in a week! I like the sticky feel of the character. I like how the game design uses conventions like red = bad, and floating platforms will fall, to teach the player about the game rules. I also like that trying stuff out leads to rewards, like the shortcut popup.
Some things I might change would be the feeling of jumping from wall to wall. I feel that, for this style of game, jumps in between walls should be fast and concise, to add to the sticky feeling. Also, the placement of the end diamond felt off sometimes, and stopping to position yourself to get to the end when you were on the end platform was taking away from the flow.
One thing I would add would be some coyote time, a few frames after you step off the ground to be able to jump. Also, clicking on the button to go to the next level also interfered with my flow. Maybe have the player press enter?
A very nice jam game! Keep up the good work. There's a lot of fun potential in this game as a Geometry Dash style, speedrunner rage game. I wish you the best of luck!