Ah yes, I remember SRB2 Kart *7*! Jokes aside, this addition is extremely cool! The amount of new levels of shortcuts and heights you can possibly achieve with these is numerous! They're also simple to control, so you'll get the hang of you in the 2nd, or possibly even 1st try. Plus, as mentioned before, they also give me Mario Kart 7 Nostalgia, which is what I live for.