Here is the full list of all 27 Heroes Never Lose: Professor Puzzlers Perplexing Ploy achievements.
Drop a total of 100 counter blocks on your opponent.
Perform a 4 chain combo.
Perform a 6 chain combo.
Perform an 8 chain combo.
Break a 4 x 4 Super Block.
Break a 6 x 6 Super Block.
Break an 8 x 8 Super Block.
Drop 2 walnuts in an opponent's grid in a single round.
Complete Arcade Mode (Easy)
Complete Arcade Mode (Medium)
Complete Arcade Mode (Hard)
Complete Arcade Mode with All Characters
Activate 300 specials
Drop a total of 1000 counter blocks on your opponent.
Drop a total of 10000 counter blocks on your opponent.
Freeze 1000 blocks.
Burn 500 blocks.
Turn 1000 blocks into counter blocks.
Win 5 rounds while your opponent is being sped up.
Scramble 500 blocks.
Activate 100 supers
Defeat an opponent with 1 block in your highest row.
Electrify 100 blocks.
Complete Arcade Mode as Gnat-Girl.
Unlock Gnat-Girl!
Challenge a friend online!
Answer the age old question, who is the ultimate Gnat?