Here is the full list of all 32 Venture Kid achievements.
Clear the game on normal.
Deal the final hit on Teklov using the shield.
Beat the final level of the game.
Beat the eight level of the game.
Find all the secret treasures.
Beat the seventh level of the game.
Use A special item to walk on spikes.
Beat the sixth level of the game.
Break 100 blocks.
Buy 5 different items in the shop.
Beat the fifth level of the game.
Die 30 times.
Beat the fourth level of the game.
Jump from a frozen enemy.
Beat the third level of the game.
Defeat 200 enemies.
Use the bottle to refill a weapon.
Beat the second level of the game.
Defeat the boss without losing energy.
Buy something in the shop.
Make an enemy defeat another enemy.
Defeat a boss with only one heart left.
Jump over 15 spiders.
Reach a boss room without defeating any enemies.
Reach a boss room without taking damage.
Use the boomerang to collect an item.
Defeat a boss in under 30 seconds.
Beat the first level of the game.
Defeat one of every type of enemy.
Defeat Teklov part II without collecting all the treasures.
Clear the game in under 45 minutes.
Clear the game on hard