Here is the full list of all 9 Mount Your Friends 3D: A Hard Man is Good to Climb achievements.
Unlock Pro match settings
Unlock Advanced match settings
Got Bronze statues in Solo or Online modes for Advanced and below settings
Got Silver statues in Solo or Online modes for Pro and below settings
Got Gold statues in Solo or Online modes for Master and below settings
Play all Rookie settings at least once
Unlock Master match settings
Unlock all stickers
Unlock all skins and trails