Here is the full list of all 62 Super Rocket Shootout achievements.
Play 100 shootouts
Win 100 shootouts
20000 explosions
Kill 1000 zombies
Make 500 counters
Kill 50 players with a counter
Make 250 perfect blocks
Perform 1000 super shots
Kill 50 players with super shots
Perform 1000 double jumps
Destroy 5000 crates
Win 50 games on 1VS3
Spend a whole day (86400 seconds) jetpacking
Perform 50 double kills
Perform 20 triple kills
Complete the tutorial
Complete the chapter 1 of Story Mode
Complete the chapter 2 of Story Mode
Complete the chapter 3 of Story Mode
Complete the chapter 4 of Story Mode
Complete the chapter 5 of Story Mode
Complete the chapter 6 of Story Mode
Complete the final chapter of Story Mode
Complete Arcade mode
Complete Arcade mode without dying
Complete Arcade mode 10 times
Complete Arcade mode 10 times without dying
Win 3 games on 1VS3 in the Laboratory level
Win 3 games on 1VS3 in the Cemetery level
Win 3 games on 1VS3 in the Train level
Win 3 games on 1VS3 in the Secret Base level
50 deaths by hitting the train tunnel
50 deaths by falling onto the railroad
50 deaths by touching lasers in the laboratory
50 deaths by getting touched by zombies
50 deaths by getting touched by bats
50 deaths by falling into the void
Kill 50 players with dynamites
Kill 50 players with grenades
Kill 50 players with rockets
Kill 50 players with mines
Stick 250 players with sticky bombs
Kill 50 players with sticky bombs
Kill 50 players with boomerangs
Kill 50 players with barrels
Kill 50 players with teleport-bombs
Kill 50 players by stomping on them with El Bruto
Kill 50 players with Evil Twin's super
Kill 50 players with Pr. Fox's super
Spend 5000 seconds invincible with Good Twin's super
Throw 500 bats with Zombot 17's super
Throw 500 rockets with Dr. Shevil's super
Kill 50 players with Maurice's super attack
Kill 50 players with Cesar's super attack
Complete Arcade mode with the Good Twin
Complete Arcade mode with the Evil Twin
Complete Arcade mode with Maurice
Complete Arcade mode with El Bruto
Complete Arcade mode with Cesar
Complete Arcade mode with Prof. Fox
Complete Arcade mode with Zombot 17
Complete Arcade mode with Dr. Shevil