So I've been playing WL4 on my 3DS via the ambassador program lately and I really enjoy it. I think the timer mechanic is really interesting, and while I never actually run out, it always provides a good amount of stress. However, I do have one criticism that really hampers my enjoyment. To open the boss door, you need all 4 jewels in every stage. Getting the jewels is easy enough, as they usually only require 1 or 2 runs to find all of them, but I don't like the fact that they are required. It makes finding them feel a lot less satisfying, because I was going to find them all anyways. It makes me wonder why anyone would bother going to the next level before collecting all the jewels anyway. Why would I move on to the next level when I just need one more jewel piece? The keyzer is also so easy to get I don't understand the purpose of him not just being connected to the frog switch. Even the levels that make you go out of your way to get him could require you to change your path anyway like in the volcano. The collectibles in this game are just so strange to me, as I figured they would be the major draw of the game. I heard that your ending depends on how well you do in boss battles? What? That just seems so absurd to me. I do enjoy the game for its awesome movement and interesting settings, and overall regard it as one of my favorite 2D platformers, but some of the choices confuse me. Do the mandatory collectibles make it better in your eyes, or would you prefer optional ones that allow for a purely casual playthrough?