I'm not sure how you are creating your collisions, however on some of those turns it seems you can get stuck if you don't correctly enter the next pathway, which can become pretty vexing to players. Also enemy snakes seem to be able to attack you even if they don't touch your player with there bodies which seems like a collider issue. I think you should make a circle collider that doesn't exit the snakes shape or mesh, that way you won't have the problem of the snakes attacking the runner. But I love this concept of a strategy maze game, would love a chance to play your game whenever you release an updated version. Keep at it man you truly have an amazing game idea many would love to play.