Here is the full list of all 18 Karate Master 2 Knock Down Blow achievements.
Defeat the bear.
You need to earn 1500 bucks.
Win the Kumite tournament.
Requires toughness 10
Defeat Oboro.
Requires KI 10
Requires tai kitae 10
Requires speed 10
Requires strength 10
Jump over a car.
Win a Karate-Pro tournament.
Defeat the legendary Sensei Matsu.
Reach fame 100.
Win a ring event.
Defeat the bull.
Win a Full Contact Karate tournament.
Win a Bogu Kumite Tournament.
Heal yourself in the hospital.