Since people seem to like what I've made, I'm going to carry on with it after the jam. The effects have been the biggest point of feedback, with most people saying they dislike the negative effects. I plan on tweaking the effects to be way more fun - essentially the new effects will allow you to break the courses like how the jump shot lets you skip sections. I realise now that negative effects just aren't fun, so why include them?
Being able to waste a shot to pick the effect you wanted was not intentional from the start, but I noticed how the game could be played like this when testing.
I really appreciate the feedback, it helps a lot :)