Here is the full list of all 12 Pulsen achievements.
You have achieved at least 25 fantastics in a row.
You have achieved at least 10,000 hits total.
You have achieved at least a 100 combo.
You have achieved at least a 500 combo.
You have completed a 200 combo
You have completed a 300 combo
You have completed a 400 combo
You have completed a 600 combo
You have completed a 700 combo
You have completed a 800 combo
You have completed a 900 combo
You have completed a 1000 combo