This is quite an interesting concept you have here. Although this is a common take on the jam's theme, you've accomplished some very stylish aesthetics with simple and unique graphics. The controls were nice and it generally felt good to move and I like some of the puzzle mechanics you have going on.
From a design standpoint, it would be really nice to visually indicate to the player that they're almost out of distance instead of displaying text on the screen; even though that's much more precise, it doesn't look very good. Have a line join from both players and have it flash when you're near the 11 mark to signify that you're almost out of range. Some of the puzzle mechanics were also a bit hidden at first, one of the switches were kind of blended into the background and I had a little trouble figuring out what was going on. You need to make it obvious to the player where to go, and what's important, and you can highlight these things using particles, having the level "move" toward it, etc.
This is a good jam gam, keep it up!