Characteristics of the enemy
1.) Skeleton - HP can be reduced just by walking on the planet, so it's not strong, but let's defeat it early!
2.) Missile - It rushes straight toward the planet, and if you do not destroy it before that, it will cause great damage!
3) Bomb Devil - Explodes after a certain period of time after landing on the planet! Be careful as the probability of appearance is high and the HP is relatively high!