BlassCFB

BlassCFB is a former Argentine player who specialised in straight-flying. He was known for creating and verifying his Hatred-difficulty, timing-based level WcropoliX, which was Top-1 difficulty at the time of its verification but was not rated until over eight years later. He is also well-known for being the second victor of Sonic Wave, and the third victor of Yatagarasu. He currently has over 70,000 subscribers on his YouTube channel.

History

BlassCFB created his YouTube channel on 30 August 2015 and beat Deadlocked on the same day. He then started beating some Easy Demons, such as Wrandering, The Magma Caverns, Dark Hell, and The Dragons Lair by NuclearNacho6. His first major Demon completion was of Theory of SkriLLex, in which he crashed at 98% before beating it on 26 September.

After many more Demon completions, he beat the unrated Insane 9* difficulty level Wcropolis on 23 October 2015 (a level which would later inspire Blass to create a superbuffed remake of the level named WcropoliX).

He then started beating Insane Demons and went on to beat Supersonic on 27 December 2015, Windy Landscape on 29 December, Acropolis on 3 January 2016, and 8o on 5 January.

Following a few easier Demon completions, he beat UltraSonic on 15 January 2016, Cursed Mansion on 14 February (a rated Insane Demon remake of Acropolis), and El Dorado on 29 February.

On 8 March 2016, BlassCFB uploaded a video announcing that he would beat the old version of Cataclysm. He uploaded a progress video of 64% on 11 March, and a video of 71% the following day. On 13 March, he beat Old Cataclysm after 13,795 attempts, making it his hardest completion at the time.

After beating Landect on 25 March, he announced on 29 March that he would beat The Ultimate Phase. Following several easier level completions, he uploaded a progress video of 78% on The Ultimate Phase on 1 April. He would go on to beat the level on 4 April, after 9,966 attempts.

On 12 April 2016, he announced his new remake of Wcropolis, WcropoliX. It is superbuffed compared to the former and is of Extreme Demon difficulty. He beat Crimson Clutter on 22 April, before completing a new hardest Demon, AcropoliX, on 5 May 2016, after 10,136 attempts and a fail at 98%.

On 31 March 2016, Blass uploaded the first video of a new series on his channel in which he would beat challenge levels made by fans that were named 'Blass Challenge'.

He announced on 1 June that he would beat the new buffed version of Cataclysm. He beat it the next day, making it his second-hardest Demon at the time.

He uploaded a final preview of WcropoliX on 20 June 2016. It showed new decoration and design, along with further heavy buffs having been added, making the level Top 1 difficulty at the time.

On 22 June, he beat A Bizarre Phantasm, making it his new hardest Demon. He continued beating Insane Demons, such as Leminscate, Necropolis, and Ultraviolet, before he started working on verifying his new Extreme Demon, WcropoliX (which he had further buffed). On 25 July 2016, he achieved 77% on the level, and on 31 July, he verified it after 8,240 attempts, marking his hardest achievement at the time.

After beating more Insane Demons, such as Infrared, Dark RainBow Rebirth, and Galatic Fragility, He started practicing Bloodbath, the Top 1 hardest level according to the Demonlist at the time, achieving 94% on 20 August 2016, and completing it the next day after 8,345 attempts, making it his second hardest achievement at the time (as WcropoliX is generally considered to be harder).

On 7 May 2017, he announced that he would quit the game and stop any activities on Geometry Dash.

Levels

Unrated levels

• Blass Challenge - A challenge level named after him.
• Old Cataclysm - The old version of Cataclysm. It is his first level ever created.

Extreme Demon levels

• WcropoliX - A collaboration with Marpha, Mero, and Nifecap. It is a super-buffed rebirth of Wcropolis, verified and published by BlassCFB himself on 1 August 2016, and is his hardest-ever verification project. It was finally rated on 17 June 2025, almost nine years after the initial verification.

Verified levels

• Endorphins (unrated/deleted) - A collaboration between GamerDasher and AceVict. The level has been deleted from the servers.
• Infernal Abyss - BlassCFB became the first victor, but later YGYoshI confessed to have hack-verified the level, thereby making BlassCFB the unofficial verifier of the level.

Trivia

• BlassCFB was considered one of the best Hispanic players back in 2017, along with Superex.
  • Both Superex and BlassCFB are from Argentina, and they became the first and second victors of Sonic Wave, respectively.
• BlassCFB uploaded 11 episodes in total of his series 'Blass Challenge'.

Videos

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YouTube

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WcropoliX Verification