ok now I know what you mean. thats exactly how I design the "power ups"...like the upgrade that you can pull triggers/switches. its introduced by a animated sequence that show how you can open the door. After that getting more complex, step by step so that the player gets familiar with the mechanic. Also the latter stuff. First just a simple ladder to get to another level. Than a ladder straight to the right. When you fall you have to try it again without dying...and so on. The jump ability is a little bit rushed but will get a more "introduction" in the next update. Right now I just write down all the feedback and think about how I implement all the stuff and write down some loose ideas. I stick to one rule when it comes to design in enceladus "no text to introduce a mechanic". Would like to keep things self explaining or with a sequence that introduces a little new mechanic. Not so easy when I think about the hiding mechanic...
I will keep that in mind, also the alien design with a contex to its surrounding. Thats how I try to design my enemies as well...for the jam it was a rush I should say. Ideally opponents behavior patterns should also be visible in the design. That you can immediately tell at first glance "oh...he can definitely jump". More difficult than it sounds first when you are in a tunnel and just focus on some stuff.
But it will get easier with a little more planning time right now :)