You can trap enemies in the bottom vault by waiting at the bottom of the long ladder. To kill them, come out, dig one brick, then go back and wait again.
Pots atrapar enemics a la cripta de la part de baix esperant- te a la part de baix de l' escala llarga. Per a matar- los, surt, cava a un maó, torna enrere i espera un altre cop.