Awesome game! I really liked the graphics and ambient sound effects, and merging together and splitting apart to solve certain puzzles was a really cool take on the theme of the jam!
My main issue was that the controls for switching between characters with the scroll wheel was really janky and it barely worked properly, using a keybind or the mouse probably would have been easier. While you nailed the "together" part of the theme I'm not seeing how the game plays into the "stronger" aspect, since there aren't really any situations in the game where the characters become stronger when they're merged.
Nonetheless it was a cute and interesting puzzle game and I really enjoyed playing it :)