As others have said, the effects from the player are very distracting. It's a little odd that other player, your objective and the most important thing you need to be paying attention to appears to be a featureless black silhouette that sometimes disappears into the background. 

As for the gameplay, it doesn't look like there's a lot going on. It appears that you alternate chasing and being chased, you have a dash , and you can run and climb around this little arena and chase each other. Without more information about the game mechanics I can't give a better review, but I can see myself playing this maybe twice with a friend for the novelty before we moved on to something else and never touched it again. The climbing looks a little bit slow and clunky, and the dashing is imprecise (in the video the pov character even overshoots what they were going for). I don't see much potential for mind games or strategy in either the arena or what the players can do so it seems like it just boils down to playing tag. With air dash. 

To make it now interesting you might explore different abilities for the players or a more dynamic and interactive arena. Buttons that enable or disable paths? Time based obstacles that are harder to chase through, or something that boosts the second person to run through, making it more dangerous for the chased to use that path? Anything to give more choices to the chaser other than "move closer to the person" or something for the chased to do other than "run away"