Here is the full list of all 20 The Gunstringer: Dead Man Running (Windows) achievements worth 200 gamerscore.
Complete tutorial and level 1 in Story Mode.
Run 25000 meters in one session
Take down 35 Destructible Targets in one session
Run through 60 turns in one session
Collect 10 Power-ups in one session
Collect 8 Treasure Chests in one session
Collect 2500 Gold Coins in one session
Beat World 1 in Story Mode
Beat World 2 in Story Mode
Beat World 3 in Story Mode
Have 10,000 coins at any one time.
Invite a friend
Send 25 challenges
Complete 25 challenges
Complete your first purchase
Make your 50th Purchase
Unlock all Powerups
Fully upgrade all Powerups
Buy a new costume set.
Unlock all Badges in the three worlds of Story.