Yeah, that's something that a lot of people are falling into and I should probably make it more obvious that swapping is a think the player can do. And even then, you pretty much only need to swap once to get all the items, then just finish up and go back. I probably could do more with the idea and add in more items, etc, but the initial concept was only made in ~9 hours, so I didn't really get to expand on it.
A lot of people are also reporting that glitch where the player disappears after beating it, so that's definitely something else I need to take a look at. It's 100% not a commentary and you're supposed to be able to keep playing the games over and over.
Thanks for the feedback!