Here is the full list of all 23 Lance A Lot: Enhanced Edition achievements.
Get 100 non-lance eliminations.
Get 200 eliminations as the Forest Guardian.
Get 1000 lance eliminations.
Get 200 eliminations as the Dragon Knight.
Get 200 eliminations as the Grim Templar.
Get 200 eliminations as the Mystery Challenger.
Get 200 eliminations as the Royal Champion.
Finish a round on each Royal Cup level.
Finish a round on each Wizard Cup level.
Finish a round of Sudden Death.
Get 100 lance eliminations.
Get 10 non-lance eliminations.
Get 1 non-lance elimination.
Get 10 lance eliminations.
Get 1 lance elimination.
Get 10000 lance eliminations.
Get 1000 non-lance eliminations.
Get 10000 non-lance eliminations.
Finish a round in each mode.
Finish a round in each ruleset.
Pick-up 1 000 lances.
Break or lose 1 000 lances.
Destroy 1 000 trees.