Here is the full list of all 20 Super Man Or Monster achievements.
Complete the first monster mission.
Complete the first man mission.
Complete 12 man missions.
Complete all man missions.
Get awesome scores for all man missions.
Beat the target time for all man missions.
Collect the 30 hidden man coins.
Own $ 1.000.000,00.
Destroy 100 crates.
Defeat 100 monsters
Build 1000 units.
Complete 12 monster missions.
Complete all monster missions.
Get monster scores for all monster missions.
Beat the target time for all monster mission.
Collect the 30 hidden monster coins.
Own ¥ 1.000.000,00.
Destroy 1000 buildings.
Destroy 100 cities.
Use 1000 special attacks.