Here is the full list of all 21 BlazeRush trophies - there are 21 bronze.
Hit yourself with every possible weapon.
Join an online party.
Be the leader and lose it all 5 seconds before the finish.
Be the king for most of the race.
Kill the opponent with each weapon but the slime.
Break the sound barrier.
Die a hundred times.
Destroy 30 cars with the missile.
Win in each of the three modes.
Do a NO SCOPE, while doing a 360.
Spend 2 seconds in the air.
Complete your first serious competition.
Overtake the leader a second before the finish.
Drop a slime while in the lead.
Rise from the last spot 5 seconds before the finish.
Destroy 50 cars with the autogun.
Destroy 40 cars with the saw.
Destroy 20 cars with a soundwave.
Unlock all cars in career.
Defeat the boss.
Complete all career missions.