| Achievement | How to unlock
|
|---|
| ASCII Centipede | Defeat first boss.
|
| Collect 'Em All! | Collect Every Unique Gemstone.
|
| Fifthteen Creature Kill Streak | Kill Fifthteen Creatures without getting hurt.
|
| Finale | Defeat fifth boss.
|
| Five Creature Kill Streak | Kill Five Creatures without getting hurt.
|
| Gemstone Collector | Collect 50 Unique Gemstones
|
| Gemstone Hoarder | Collect 100 Unique Gemstones
|
| Great Tarantula | Defeat second boss.
|
| Massive Damage | Defeat fourth boss.
|
| One after another... | Complete the boss rush.
|
| One Head Becomes Three. | Defeat third boss.
|
| Thirty Monster Kill Streak | Kill Thirty Creatures without getting hurt.
|
| Up Your Arsenal | Purchase every weapon and ammo type.
|