Here is the full list of all 35 Touhou Monster TD ~ 幻想乡妖怪塔防 achievements.
Use Yuka to grow 32 Sunflowers in a game.
Defeat Unknown Ball.
Still have 1000 points left when finish a level.
Build 8 different Level 5 unit in a game.
Defeat Unknown Doggy.
Win the first level in normal mode.
Defeat 20 enemies by one attack.
Defeat 1000 Kedama.
Defeat Unknown Tentacle.
Defeat Unknown Boss.
Complete main story levels with three stars.
Complete main story levels in Eazy mode.
Complete main story levels in Normal mode.
Complete main story levels in Hard mode.
Complete main story levels in Lunatic mode.
Complete main story levels in Hero mode.
Complete main story levels in Challenger mode.
Unlock all Gensokyo-Wiki items.
Let Minoriko generate 5 points.
Unlokc all upgrades.
Start every wave earlier in a level.
Build only one type of unit in a level.
There are 12 train cabins exist in the game.
Defeat 1000 enemies by player characters.
Use Bomb to defeat 200 enemies.
Play 100 games.
Use Cirno to freeze Suwako 100 times.
Lose in Easy Mode.
Win a level with 1 HP left in Story Mode.