Here is the full list of all 17 CrossKrush trophies - there are 2 bronze, 4 silver, 10 gold and 1 platinum.
Get all other trophies
Get "+500" bonus score on the last wave of Level 8, playing in "Last Will" mode
Get "+250" or "+500" bonus score on the last wave of Level 3, playing in "Last Will" mode
Get "+250" or "+500" bonus score in ALL waves in a single level
Pick a health powerup without destroying the ambulance that carries it
Destroy a car at the last moment, right on top of the crosswalk
Get killed by a roller
Destroy a roller
Destroy 10 cars in BIG size (accumulative)
Make a x20 combo
Destroy 5 cars with 1 laser shot
Make a x10 combo
Get "+500" bonus score anywhere
Destroy 3 ambulances (accumulative)
Reach 1000 points in damage with cane hits (accumulative)
Destroy 5 cars using your cane (accumulative)
Destroy a car using your cane