Zapper

Zapper may refer to the following:
 * Zapper (A Class) - an Equipment with 30000 base resonance
 * Zapper (B Class) - an Equipment with 18000 base resonance
 * Zapper (C Class) - an Equipment with 3000 base resonance
 * Zapper (D Class) - an Equipment with 600 base resonance
 * Zapper (Enemy) - an Enemy boss in Chapter 2