Here is the full list of all 21 Scram Kitty DX trophies - there are 21 bronze.
Finish 'The Energy Core' without taking any damage.
Clear 'Test Labs 5' without jumping even one time!
Clear 'Test Labs 4' in under 30 seconds. You need to get to that laser quickly!
Clear 'East Wing 1' jumping fewer than 10 times.
Collect the White Cat in 'Test Labs 3' without touching any special rails
Clear 'Engine Rooms 5' jumping fewer than 5 times.
Clear 'Engine Rooms 4' without collecting a single Golden Penny.
Clear 'Engine Rooms 3' without jumping a single time.
Clear 'Engine Rooms 2' without collecting a single Golden Penny.
Clear 'Engine Rooms 1' in under 30 seconds.
Clear 'East Wing 3' without collecting a single Golden Penny.
Defeat the Mouse Commander and collect the Black Cat in just one encounter, in 'The Vents 5'.
Clear 'The Vents 2' without Fire Jumping.
Do 12 Fire Jumps in 10 seconds.
Collect 25 golden pennies in 'The Vents 1' without shooting OR fire jumping.
Clear 'Docking Bay 3' without touching any special rails.
Finish 'Docking Bay 2' in under 20 seconds.
Clear 'Approach 4' in under 9 seconds.
Clear 'East Wing 5' in under 90 seconds.
Clear 'East Wing 4' without collecting a single Golden Penny.
Reach and defeat the Mouse Commander in 'Test Labs 2' without firing a shot.