Escarabajo literally translates to "beetle". It's an interesting and somewhat unexpected word to find in a rap song, making it memorable.
In the lyrics, Nanpa Básico uses it metaphorically: "Saliendo del subsuelo como un escarabajo" (Coming out from underground like a beetle). This imagery evokes a sense of resilience, emerging from difficult circumstances, and working hard to rise above, much like a beetle pushing its way out of the earth.
Nanpa Básico says the price out loud. The couplet he keeps returning to is "Así me hice fuerte / Con los pies de cera por llamas ardientes" ("that's how I got strong / with wax feet over burning flames") — wax is the wrong material to walk fire in, and he walked it anyway. He gives the starting point too: "Saliendo del subsuelo como un escarabajo" ("coming up out of the basement like a beetle"), and "La caminé todita, no tomé ningún atajo" ("I walked the whole of it, I took no shortcut"). The title line, "Siempre quiero más de lo suficiente" ("I always want more than enough"), gets its reason two bars later: "Trabajo pa' que mis hijos no pasen trabajo" ("I work so my kids don't have to struggle").
From there the song stops arguing about how much and starts arguing about how. "Todo esto es a mi modo" ("all of this is on my own terms") carries the second half, and "Es porque lo quiero todo" ("because I want all of it") is the admission under it. In between sits a run of eight bars of "Shalalala-shalala", the one stretch where he puts the argument down.