SrGuillester

SrGuillester is a highly skilled Spanish player. He is well known for beating notoriously hard demons such as Ultrasonic and Necropolis. His hardest demon is Ice Carbon Diablo X. SrGuillester also has verified Lunatic Doom Machine by Andromeda and Optagonus, as Andromeda had hacked the level and it was unrated. It is currently unrated as of now, however, on SrGuillester's account.

Trivia

 * SrGuillester is currently the only Spanish player known to have beaten Creeper Force, The Ultimate Phase, and Ice Carbon Diablo X legitimately.
 * SrGuillester seems to use his spacebar instead of a mouse, similarly to Cyclic.