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.
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.
Equip the full space set.
Craft every item.
Break everything on the island.
Make friends with everyone on the island.
Acquire all bracelets, and gain enlightenment.
Complete the story.
Ragdoll into something as fast as you can.
Take a seat in the Junk Shop.
Equip the full ninja set.
Equip the full paint set.
Completed Jill's Quest
Completed Avery's Quest
Completed Martin's Quest
Climb to the tippy top of the antenna.
Undertake a new, bigger quest.