Full list of all 16 Run & Jump Guy achievements worth 2,000 gamerscore. It takes around 0.5-1 hour to unlock all of the achievements in the base game.
The base game contains 11 achievements worth 1,000 Gamerscore, and there is 1 DLC pack containing 5 achievements worth 1,000 Gamerscore.
Acquire the Potion of Fire.
Acquire the Bubbly Potion.
Score 20,000 points.
Gather 100 coins.
Complete Level 5 on the Island.
Complete Level 10 on the Island.
Complete Location Island
Complete Location Winter Forest
Defeat the last boss
Die 21 times.
Collect 250 coins.
Find the Secret Warp in Level 1-6
Find the Secret Warp in Level 2-2
Find the Secret Warp in Level 3-3
Find the Secret Warp in Level 3-7
Find the Secret Warp in Level 2-6