I really want to like this, I really do: the concept is great and I love the idea of going through a level twice with two different routes that work against each other. And while I did have a bit of fun, there were just so many issues with the gameplay that made it just feel very frustrating to me. I have no idea why you didn't just color the player characters to be blue/red to indicate what blocks they can touch: having them stay white just makes it confusing when the former would be much more intuitive. Felt way too punishing to have to do both runs perfectly: dunno why it doesn't just let you retry a color without forcing you to do the previous as well. General lack of music and sound made the game feel very drab and empty. Controls felt quite clunky with the weird way you build up momentum but stop immediately, and the double jump was so short it was confusing and unsatisfying to use. Something about the hitboxes felt so unfair as well: had so many times where I got killed when it felt like I really did not get hit. Had a bug where sometimes when I was on a moving platform, the player character wouldn't move with it, they'd stay still. And so on. Definitely a great idea that has a lot of potential: the levels themselves are already quite good I think, it just needs polishing up in the controls and other departments to make this a slam dunk!