Campaign Mode
- 25 Campaign levels for each StageMission Mode
- Continuous Flood Of Alien Attacks –survive!Endless Alien Attacks For
High Engagement Game
Ammo Drop Items and other
Level-up Items Game Play
Not Just Alien Destruction Game Play
Puzzle Elements As Additional Engagement
Various Weapons and Defense Items customizing
Enhanced Item Upgrade System
Achievement
- goals For Motivation- reward System For Achievements
- system to Raise “motivation”
