Yea, that's pretty much been my goal with the level design and secret item placement (clues in the level design). There's nothing as difficult as the spot you have to bomb to proceed in Norfair in the original game (just before the high jump boots). Some of the items/pick ups are in view but you have to find another route to get to them, a few require bombing to access hidden rooms, others have entries to hidden rooms that are "hidden in plain sight", a few require the wall jump ability. Nearly all of the items will require the player to explore and really pay attention to the environment to find. I guess you could say it's much more like Super Metroid although it was never my intention to mimic or copy Super Metroid. I'm pretty confident in the placement of the general items, missiles, E-tanks, and items required to beat the game. The wave beam is placed in a secret area but it's designed so pretty much everyone should be able to locate it (the modifications to this weapon are really cool). I'm just down to the suit item and screw attack item, I'm starting to think my current placement might work but could actually be a little more challenging for the players.