This was surprisingly good! I say surprising because at first glance I did not expect a puzzle platformer that actually had a good mechanic, but this is really fun. I like this a lot and I only have two suggestions
1. Use something other than space bar for the swap mechanic - I guarantee you will hear this again, everyone thinks space = jump, so many times I meant to jump and ended swapping characters and seeing the other one (dying)
2. The eyes bleeding is funny and meme-ish but please make it faster, it's just a little bit too long for a puzzle platformer with frequent retries, maybe just show it the first time at full duration and then make it faster every subsequent time.
Great job!