Rock 'N' Roll Defense achievements

Sell a total of 1 speaker

Defeat 1 pop fan 3

Deploy a total of 10 speakers

Finish level 01 with at least 1 skull

Deploy a "The Tremor" speaker

Deploy a "The Tower" speaker

Defeat 10 pop fan 1

Defeat 10 enemies

Defeat 1 pop fan 2

Release a total of 1 special

Deploy a "The Shocking" speaker

Defeat 1 pop fan 1