Here is the full list of all 16 Mutant Boxing League VR achievements.
Perform 30 blocks in a single match
Win 100 games on any difficulty
Knockout any opponent a total of 100 times
Achieve an A+ grade in a match.
Win 10 matches on any difficulty
Knockout any opponent a total of 10 times
Block 1000 punches
Perform 100 slips total in any match
Perform 10 slips in a single match
Complete any match by a KO or Score
Win a match on any hardcore mode
Win 10 matches on any hardcore mode
Win 100 matches on any hardcore mode
Win a match on Barely Upright difficulty
Win a match on Gym Skipper difficulty
Win a match on Simply Unfair difficulty