This band started as the solo project of the Transmetal singer Alberto "Thrash" Pimentel.

When he left this band first time 1990 he founded Leprossy, and the album 1991 (at the label "Führer records"!) is in the same style as his old band, but he used English lyrics. A CD version of this album was released in 1992 by the "Avanzada" label, with slight different cover, and without mistakes in the bandname! The release came shortly before the bankruptcy of this label, and because of this never came really into official circulation! A Spanish version of this album was released in 1994, but it is like a different record, as it is recorded and sung much more brutal.

He joined already again in 1992 TRANSMETAL, and released many more albums with them, till the final split in 1998. The reason of the split could not have been musical differences, as he continues with exact the same style. He gathered two well known fighters with him: Julio Marquez (guitar ex Ramses), Felipe Gonzales (drums ex Inquisidor). The album from `98 is very critical, and recorded in honor of the uprising Indians in the province Chiapas. Music wise they got much extremer and more modern. They are now the second biggest Metal band in the country (directly after Pimentel's old employers).

They tour all over the country, and are well covered in the media. But in 2003 there was a big "bang" in the band, and Pimentel was alone! But he found soon new members, one of them is Baudell Ayala who was bass player in INQUISIDOR. What the reason was for this split I do not know, but could be musical differences as the other 3 started with ZAIKO a total modern band! LEPROSY stayed in the old style and even play a bit less brutal, like in the beginning of the band. In this album he pays also tribute to Wendy O Williams, first is the title song the melody of "The Damned" with spanish lyrics and then he is covering "Rock`n Roll"