Good concept, each level completed gives you a special gift to reach the next level, would be nice to see more of these.
You could leave the player test others things cause in level 2 and 3 there are colliders that avoid the player to go to the other site, making more easy to the player discover the secret paths, this in the 3rd level would be more interesting cause the user can try the walls of the other site or walls under the lava if you continue with the past ENHANCE.
Still love it an enjoy it, nice work.