********* How to play
- Defensive mode
: Please stop aliens's attack!
: Depending on the location and size of aliens, the attackable kick is different!
: If you build up a combo, you can use the technique of climax, so please use it at the moment of crisis!
- closed training
: We need strong power to prevent aliens! Go ahead and level up here!
- Boss mode
: We can not clear if level does not support! Please challenge after enough training!
: If you defeat the boss, a big reward is waiting for you!
- Ranking mode
: Match points with other users!