Fairly fun for what it is and it's really cool that you read an article and tried to implement what you've read!
I think hit detection is a bit wonky sometimes, which is an issue when the main draw of the game is the fun you get from running stuff over, especially when combined with the lack of good, conspicuous and visceral feedback like huge particle effects. I did notice some quiet sounds and some sprite changes when you hit stuff, but some more bang would really take the fun in this game to the next level.