wth was my oponent doing and wth i have 97.8 accuracy

https://www.chess.com/analysis/game/live/18994558089?tab=analysis

ggs! Sometimes, it's just not your opponents day, and then he/she just blunders a lot. You did well to punish those mistakes by taking free pieces. (This explains your high accuracy) You finished the game with a nice mating combination. Keep it going

really excellent play for a 500-600 rating. You have punished every mistake he/she does.