Here is the full list of all 17 LumbearJack achievements.
Hibernation is over
Wear all the suits
Defeat Evil Works
You can't chop it down yet
Try to get out early
Feed all the hens
Throw garbage in the oven
Spread lots of love
Burn your own butt
Complete "Ace" with 10 hits
Complete "Birdie" with 7 hits
Slap all humans
Clear all the stages
Destroy all traps
Feed the rat
Solve it in 9 moves
Complete the whole game