Simple, easy to pick up and working game, good start :)
The size of the webview barely fits on a wqhd, that's a shame since most of us tester will try it on the web, you should changed it on the page settings :/
Way to improves it : Collider is way too frustrating, you must be more forgiving for the player to enjoy the game. And add souds and variety to boost interest, also add more feedbacks like reward effect when passing an obstacle and death animation if loose. Your on a good way