Here is the full list of all 52 Big Rumble Boxing: Creed Champions achievements.
Slip Counter a Slip Counter 10 times
Break your opponent's Guard Meter 3 times in a single match
Get the first Knockdown in a match without losing any health
Interrupt an opponent's attack with a Super Move 10 times
Knock an opponent into the turnbuckle 3 times in a single match
Land a Super Move 3 times in a single match
Slip Counter your opponent 5 times in a single match
Win a match after being 3 Knockdowns behind
Win a match by Knockout using a Super Move
Win a match without using Basic Attacks
Win a match without Slip Countering or blocking any attacks
Beat an Arcade Tower in an Alternate Costume
Beat an Arcade Tower on Champion Difficulty
Beat Adonis "Hollywood" Creed's Arcade Tower on Any Difficulty
Beat Rocky "The Italian Stallion" Balboa's Arcade Tower on Any Difficulty
Beat Andy "Mad Dog" Pono's Arcade Tower on Any Difficulty
Beat Apollo "The Prince of Punch" Creed's Arcade Tower on Any Difficulty
Beat Asif "The Basher" Bashir's Arcade Tower on Any Difficulty
Beat Axel "El Tigre" Ramirez's Arcade Tower on Any Difficulty
Beat Benjamin "Benji" Reid's Arcade Tower on Any Difficulty
Beat Bobby "The Operator" Nash's Arcade Tower on Any Difficulty
Beat Danny "Stuntman" Wheeler's Arcade Tower on Any Difficulty
Beat David "Solo" Nez's Arcade Tower on Any Difficulty
Beat Duane "Showstopper" Reynolds' Arcade Tower on Any Difficulty
Beat Erik "The Norseman" Erling's Arcade Tower on Any Difficulty
Beat Hector "Anarchy" Del Rosario's Arcade Tower on Any Difficulty
Beat Ivan Drago's Arcade Tower on Any Difficulty
Beat James "Clubber" Lang's Arcade Tower on Any Difficulty
Beat Leo "The Lion" Sporino's Arcade Tower on Any Difficulty
Beat Luke "Scraps" O'Grady's Arcade Tower on Any Difficulty
Beat "Pretty" Ricky Conlan's Arcade Tower on Any Difficulty
Beat Vick "Underground" Rivera's Arcade Tower on Any Difficulty
Beat Viktor Drago's Arcade Tower on Any Difficulty
Play a Versus match with adjusted Match Options
Armor through a Basic Attack 10 times
Armor through a Basic Attack 20 times
Armor through a Basic Attack 30 times
Pierce an opponent's Guard with an Unblockable Move 5 times
Pierce an opponent's Guard with an Unblockable Move 10 times
Pierce an opponent's Guard with an Unblockable Move 20 times
Break your opponent's Guard Meter 10 times
Break your opponent's Guard Meter 20 times
Break your opponent's Guard Meter 30 times
Land a hit on a rope-bounced opponent 10 times
Land a hit on a rope-bounced opponent 20 times
Land a hit on a rope-bounced opponent 30 times
Perform a Slip Counter 10 times
Perform a Slip Counter 20 times
Perform a Slip Counter 30 times
Beat all Arcade Towers on Any Difficulty
Unlock all Boxers
Unlock all Outfits