Thanks for the feedback! I agree the wall jump is no good (the double-tap to dash too), I need to rethink those next time I attempt a platformer. Main trick to wall jumping is you have to be pressing into the wall when you hit jump. The portholes go green when you complete the room or red if you disqualify from it. Using the wrong item disqualifies, then you have to leave and return. As far as getting rid of items in the wrong order, don’t panic! At the limit, it’s possible to complete the whole game without using items at all. But some of the treasure chests become inconvenient, eg if you give away the rocket boots too soon.