Rapping well is difficult. Creating an interesting, well-structured story is difficult. Taking random suggestions from a crowd and then being funny on the spot is difficult. Doing all of this together, at the same time? It's probably really fucking easy, and I don't see how anyone could possibly mess it up.
Unsurprisingly, there were some rough spots in last night's improvised hip-hop hero's journey tale of an aggrieved Best Buy employee with the central through line of "something falling down" (per an audience suggestion). Despite having some solid DJs on hand, including an impressive beatboxer, it's clear that rap doesn't fall within the performers' areas of expertise. Think "yo my name is ____ and I'm here to say" kinds of lines.
To their credit, the show still managed to be pretty entertaining overall. I particularly enjoyed the second act, where the performers began to break the fourth wall more frequently and imbue their characters with some unique quirks. A running gag that developed around the Best Buy manager's muscle atrophy was great. The general concept behind this show is a great idea, and I'd love to see what a group of veteran freestyle rappers could do with it.