Here is the full list of all 20 Sky Ride trophies - there are 20 bronze.
Getting Hit for the First Time.
Playing the Game for the First Time.
Get in Ranking for the First Time.
Game Over Due to Crashing.
Rushing the Boss.
Beating over 100 enemies all at once.
Beating the Boss in 5seconds after its appearance.
Intercepting 10 missiles from enemies.
Breaking 10 item boxes.
Getting to the Level 4 in 10 minutes.
Getting at the hight of 400m in the Sky.
Recover 3 times from LIFE0%.
Result of damage point excedes over 2000.
Result of Ave. Speed excedes over 160km/h.
Result of the Number of Aquired Items Excedes over 2000.
Result of the Number of Enemies destroyed Excedes over 2000.
Result of the Number of Bosses destroyed Excedes over 10.
Result of evaluation has became S.
Result of points excedes over 1000000.
The total number of enemies destoryed reaches 10000.