Here is the full list of all 32 Crystal Caves HD achievements.
Collect 1,000,000 points worth of bonus items.
Collect 5000 crystals.
Finish any episode on Hard difficulty.
Finish Episode 4
Finish all Episodes
Collect 50 fruit throught the levels
Finish Episode 3
???
Destroy 10 enemies with a power of a single Red Mushroom.
Find and enter the wormhole.
Finish any level in under 1 minute
Unlock 200 treasure chests
Jump between crumbling platforms 15 times
Find 100 secret crystals
Defeat 30 bosses
Reverse gravity while playing reverse gravity level.
Finish Episode 2
Kill 250 enemies.
Collect all fruit in a single level
Create and play your own level.
Finish Episode 1
Eat Green Mushroom without dying.
Kill 10 spiders
Complete a level with a perfect score
Complete any dark level without turning on the lights
Own at least 60 ammo
Collect BONUS!
Complete any level without killing a single enemy.
Finish your first level
Oopsie!