- Helga characters can be obtained with a chance of luck golden box.
- Support bombing skill retention
- Emergency reserves skills
- Absorbed skill retention
- Rampage skill retention
- Spread shot skill retention
- +4 Attack (Zombie Crush, Kill Mission Marx, Albert Aid Mission, Tesla aid mission, zombie commander, challenge)
- Speed +4 (zombie crush, Kill mission Marx, Albert aid mission, Tesla aid mission, zombie commander, challenge)
- Point + 25% ● EXP + 25%
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