Here is the full list of all 12 Zippy the Circle Challenge (Level 8C, Level 9C, and Level 10C) (EU) trophies - there are 11 gold and 1 platinum.
Great job! You got all the trophies! Congratulations!
Complete Level 8
Complete Level 8 with the timer lower than 350
Complete Level 8 with the timer lower than 250
Get the medal for Level 8
Complete Level 9
Go through at least 10 rings in level 9
Get the medal for Level 9
Complete Level 10
Complete Level 10 with the timer lower than 325
Complete Level 10 with the timer lower than 225
Get the medal for Level 10