Rock 'N' Roll Defense achievements

Defeat 100 pop fan 3

Defeat 100 pop fan 4

Accumulate 5000 coins

Finish level 03 with at least 1 skull

Finish level 02 with at least 3 skulls

Defeat 10 pop fan 4

Upgrade a "The Tremor" speaker to lvl2

Deploy a total of 50 speakers

Upgrade a "The Shocking" speaker to lvl3

Defeat 100 pop fan 1

Accumulate 2000 coins in a single stage

Release a total of 5 specials