I totally believe you.
I won 3600 engine
WAIT??? 3200 or 3600 dont sacrifice their queen for nothing. They play best moves and I think you made that up. I will report you!
i also won to maximum (3200) in bullet by flagging (he had the upper hand). but there was one win by checkmate when he played horribly
https://www.chess.com/game/computer/1586507
in your game i see he played horribly..that's why you could beat him
[Date "09/03/2021 10:07AM"]
[FEN rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1]
[White "UncontrollablePlayer"]
[Black "Maximum"]
[Result "1-0"]
[WhiteElo "517"]
[BlackElo "3200"]
[Termination "UncontrollablePlayer wins by Checkmate"]
1.e4 d6 2.Nf3 Nf6 3.Bd3 g6 4.O-O c5 5.Re1 a6 6.e5 dxe5 7.Rxe5 Kd7 8.Ng5 e6 9.Nxf7 Rg8 10.Nxd8 Ke8 11.Nxe6 Bxe6 12.Rxe6+ Kd8 13.Rxf6 Bh6 14.Be4 Bg7 15.Rd6+ Kc7 16.Rd3 Kc8 17.Rd4 b5 18.Rd5 Bh8 19.d4 Ra7 20.Bg5 Rc7 21.Qg4+ Kb7 22.Nc3 Bf6 23.Rd8+ Rc6 24.Rxg8 Ka7 25.Rxb8 Kxb8 26.Bxc6 Bg7 27.Qd7 cxd4 28.Qxg7 dxc3 29.bxc3 Kc8 30.Qg8+ Kc7 31.Qg7+ Kxc6 32.Qxg6+ hxg6 33.h4 Kc7 34.Re1 Kd6 35.Rd1+ Ke5 36.Re1+ Kd6 37.Re8 a5 38.Rg8 b4 39.cxb4 Kc7 40.Rxg6 Kb7 41.h5 Kc8 42.h6 axb4 43.h7 Kb7 44.h8=Q Kc7 45.Qh7+ Kb8 46.Rg8# {1-0}