Here is the full list of all 30 Deceptus achievements.
Kill your first enemy
Kill 3 enemies in a row
Kill 10 enmeies
Kill 20 enemies
Kill 50 enemies
Kill 100 enemies
Kill 200 enemies
Kill 5 enemies with grenade
Kill 10 enemies with grenade
Kill an enemy with Melee attack
Kill 5 enemies with Melee attack
Kill 10 enemies with melee attack
Perform 10 jumps
Perform 50 jumps
Perform 100 Jumps
Collect 10 coins
Collect 20 coins
Collect 30 coins
Collect 40 coins
Collect 50 coins
Die 1 time
Die 10 times
Die 50 times
Die 100 times
Deal 200 Damage
Pick 10 weapons
Pick 10 Ammo
Pick 10 grenade
Kill 5 enemies in row
Kill an enemy with grenade