Here is the full list of all 9 Stacks TNT achievements.
Use the RC Control Pad to trigger a block.
Kill 5 mobs by activating a single block.
Finish a building from a blue print.
Craft a block.
Capture a flag.
Kill a mob by hand.
Kill 20 mobs by activating a single block.
Open all chests.
Finish the game without losing a heart.