Integration Bee Advice

Going to be attending an integration bee at a nearby state college for the first time! Im almost finished with multivariable calculus and I’ve heard these stay mostly in Calc 2 territory and the main difficulty comes from being able to recognize identities insanely quickly. Does anyone have any advice on specifically what I should review or if they have a playlist or study pdf that covers like everything an integral bee would have? Also they are usually single elimination bracket style right? I don’t expect to do to well but I’m so excited