Jaka is a Super Smash Bros. UltimateIsabelle main from Switzerland who is considered the best Isabelle player in Europe and one of the best Isabelle players in the world. His breakout tournament was at Smash Contest: DoKomi 2021, where he defeated Dia, Destany, and Raphy to place 4th, the highest-placing Isabelle player at a national tournament. Months later, he placed 7th at VCA 2021, defeating Ramses, Ogey, AndresFn, and NaetorU along the way, becoming the first Swiss player to place top 8 at any Super Smash Bros. major. Outside of these wins, Jaka has also defeated Peli. Jaka is currently ranked 2nd on the Swiss Power Rankings, 46th on the OrionRank 2022 Europe, and was formerly ranked 100th on the OrionRank Ultimate: Eclipse and 30th on the PGRU v3 EU.