One of the world's best Quake players ever is also one of the most controversial characters too. Cooller is known to taunt his rivals, especially those whose styles are very aim-oriented. One of such opponents is Johan "toxic" Quick, one of the world's very best "Quake 4" player nowadays. The animosity started when Toxic beat Cooller in an online tournament when "Quake 3" was still played in professionally, and the Russian felt that he would beat the Swede in a LAN enviromnent.

That time came at QuakeCon in 2004 when the two met and, indeed, Cooller defeated Toxic to whip out the aforementioned line, with thousands of people watching on GTV. Cooller's amusing version of English, the taunting and the unmatched arrogance have made his quotes extremely popular among the FPS gamers' crowd.

Besides this one, Cooller authored many different quotes, such as:

- "Yes yes you can win" when Toxic was trying to make a comeback in their game on ZTN3Tourney1 during the 2005 edition of ESWC;
- "No brain only rail" in one of the matches against Toxic, used also by Toxic when he was beating Cooller on DM6 at the same ESWC;
- "Alltimes lucky" when a map he hadn't practiced was picked for his games with Paul "czm" Nelson and John "ZeRo4" Hill at QuakeCon 2004;
- "Not my trouble" when his opponent, Alexander "Z4muZ" Ihrfors froze for a moment during a tournament game at the Wipeout LAN in Switzerland in 2003
- "Ya tebe ne chaotic na dm6" ("i'm not your chaotic on dm6") when Alexei "Lexer" Nesterov was trying to make a comeback against him on ZTN at QuakeCon 2004, referring to the famous comeback he had made against Jared "cha0ticz" Cugno at QuakeCon 2002.

Sadly, having traveled the world so much, Cooller has improved his grasp of English so vastly that his quotes will never be the same.