This is really fun! I love the tag aspect and how the roles reverse the art style is absolutely lovely! The music you chose fit perfectly as well. I also found it a bit hard to control, it was a bit frustrating at times because I found myself getting caught on the walls a bit too much, I'm not sure if it's an imbalance between the speed at which you move and the gameplay space? If during play testing no one else finds this issue I will be the first to admit it's a skill issue and a me problem haha! I do like "battle tanks" control of accelerating with the up arrow and steering with the left and right.
Edit: I will also say, I don't really make game mechanics -- I mainly do game art so please take my suggestion with a grain of salt