Here is the full list of all 49 Blocky McBlockFace achievements.
Destroy 10 red blocks
Get enough score for the shotgun and equip it
Get enough score for the bow and equip it
Get enough score for the rocket launcher and equip it
Get enough score for the laser and equip it
Get enough score for the energy ball and equip it
Get enough score for the nuke launcher and equip it
Get enough score for Blocky's Shank and equip it
Get enough score for Blocky's Great Sword and equip it
Up your health five times
Up your health 100 times
Up your health 420 times
Upgrade your fire rate
Max your fire rate
Upgrade your speed
Upgrade your spreed
Max your speed
Get one bodyguard
Get two bodyguards
Get three bodyguards
Get four bodyguards
Get five bodyguards
Upgrade your bodyguards weapons to shotguns
Upgrade your bodyguards weapons to bows and arrows
Upgrade your bodyguards weapons to rocket launchers
Upgrade your bodyguards fire rate
Max your bodyguards fire rate
Become fast as frick
Assert dominance as BLOCKY THE DESTROYER OF WORLDS
Become Lil' Blocky
Destroy 1000 Red Blocks
Destroy 10 Orange Blocks
Destroy 1000 Orange Blocks
Destroy 10 Big Red Blocks
Destroy 1000 Big Red Blocks
Destroy 10 Yellow Blocks
Destroy 1000 Yellow Blocks