Here is the full list of all 17 TILTit Demo achievements.
Finish a Sprint run
Finish a Sprint run with a score of at least 5000 points
Finish a Sprint run with a score of at least 10 000 points
Finish a Sprint run with a score of at least 15 000 points
Remove at least 3 blocks at the same time
Remove at least 5 blocks at the same time
Remove at least 7 blocks at the same time
Create a chain
Create a 3x chain
Create a 5x chain
Create a 7x chain
Create a 9x chain
Create a 11x chain
Keep the balance for 10 blocks at the same time
Keep the balance for 20 blocks at the same time
Keep the balance for 30 blocks at the same time
Watch the snow fall