Here is the full list of all 22 Lil Gator Game achievements. It takes around 3-4 hours to unlock all of the achievements on Windows.
Swing with the Sticky Hand 5 times without touching the ground.
Try to touch the sky.
Equip the full ninja set.
Equip the full paint set.
YOU WILL NEVER KNOW THE TRUTH.
Learn the monkey's TRUE name.
Instruct the monkey on the power of creativity.
Learn the monkey's real name.
Learn the monkey's name.
Craft every item.
Make friends with everyone on the island.
Break everything on the island.
Complete the story.
Climb to the tippy top of the antenna.
Acquire all bracelets, and gain enlightenment.
Completed Avery's Quest
Completed Martin's Quest
Take a seat in the Junk Shop.
Equip the full space set.
Completed Jill's Quest
Undertake a new, bigger quest.
Ragdoll into something as fast as you can.