I like the idea of the janitors racing after a hockey game. The mechanics of the game are really fun and pair well with the race track design. Once I learned how to properly let go of the gas to turn, I felt pretty slick in my turns. Seeing the power ups pop up after finishing a race was pretty interesting and enhanced the gameplay a lot.
I think the game would benefit a lot from having descriptions or some viewer that lets you see the stats for that item applied to your janitor. For example, how much damage the cow catcher does or how much boost you have. Since I could re-apply those items after finishing a race, I would have liked to know if the power ups would stack and increase some percentage of its effectiveness.
Really fun and solid game with a lot of potential!