Here is the full list of all 15 Unbox: Newbie's Adventure achievements.
Receive a gift from a Giving Post.
Customise your box for the first time.
Meet Bounce and complete GPS' induction.
Earn the Master Stamp in Paradise Isles.
Earn the Master Stamp in Parcel Peaks.
Earn the Master Stamp in Isla Cartulina.
Find all of the Golden Tape on every world.
Find and rescue every Zippie on every world.
Find and read a Mystery Diary.
Unbox 216 times.
Slam or shoot 50 Wild Cards with fireworks.
Slam or shoot 500 Wild Cards with fireworks.
Find and drive a vehicle for the first time.
Knock over 1000 things.
Earn a 100% rating on every world. (Find every Stamp, Golden Tape, Trapped Zippie and defeat the boss)