Congrats on finishing your game! This is really nice :)
I loved the core design here - puzzle platformers are one of my favorites. And applying the theme with a little bit of twisted humor was a great take. Here's this heroic knight used to fighting on his own forced to have a partner - so he sacrifices him at any opportunity. Great character development tied to gameplay.
Like any jam game, I think this game just really needed more testing and polish. Some of the timing based puzzles felt a little finnicky and/or overly punishing. In particular, guiding the squire through the spinning blades was a bit frustrating. I wonder if it would have been better to have an option to just take control of him instead? Character swapping style? Also, the final boss was a fun take on a boss battle, but it just took way too long. If there's no HP indicator or dedicated combat system, the only "good" numbers are 1 or 3. I couldn't tell if I was actually doing anything or progressing the fight.
Overall, very well done. I enjoyed my time with your game. Keep making fun games!