Here is the full list of all 19 KByte achievements.
Grab all 32 Collectibles
Score of 100 points in Watch
Unlock and play with G-Byte
Beat the Boss
Complete every level of The Factory
50% Game Completion
Play a level in evey World
Complete every level of The Ancient Ruins
Complete every level of The Tower
Complete every level of The Fort
Grab 16 Collectibles.
Complete every level of The Laboratory
Complete every level The Volcano
Grab 8 Collectibles
Complete every level of The Blue Cave
Complete every level of The Sea of Clouds
Grab your first collectible.
Complete your first level
100% Game Completion