Here is the full list of all 38 Beat The Clock achievements.
Start a streak
Get a 2 streak
Get a 3 streak
Get a 5 streak
Get a 10 streak
Win 10 times
Win 50 times
Win 100 times
Win 250 times
Win 500 times
Stop the timer at 00:99
Stop the timer at 01:01
Stop the timer at 00:10 or below
Timer reached 60 seconds
Stop the timer at 03:14
Hold 50 coins
Hold 100 coins
Hold 250 coins
Hold 500 coins
Hold 1000 coins
Use a life to save a streak
Use 9 lives to save a streak
Timer has ran for 10 minutes
Timer has ran for 1 hour
Timer has ran for 1 day
You have beaten the clock!
Beat Ascension 1
Beat Ascension 2
Beat Ascension 3
Beat Ascension 4
Beat Ascension 5
Beat Ascension 6
Beat Ascension 7
Beat Ascension 8
Beat Ascension 9
Beat Ascension 10
Beat Ascension 11
Beat Ascension 12