___ _____ ___ _____ ___ _____ ___ _____ ___ _____ ___ _____ ___ _____ ___
  |***|~~+~~|***|~~+~~|***|~~+~~|***|~~+~~|***|~~+~~|***|~~+~~|***|~~+~~|***|
   ¯¯¯ ¯¯¯¯¯ ¯¯¯ ¯¯¯¯¯ ¯¯¯ ¯¯¯¯¯ ¯¯¯ ¯¯¯¯¯ ¯¯¯ ¯¯¯¯¯ ¯¯¯ ¯¯¯¯¯ ¯¯¯ ¯¯¯¯¯ ¯¯¯
                                  6. Secrets                            ma_se
   ___ _____ ___ _____ ___ _____ ___ _____ ___ _____ ___ _____ ___ _____ ___
  |***|~~+~~|***|~~+~~|***|~~+~~|***|~~+~~|***|~~+~~|***|~~+~~|***|~~+~~|***|
   ¯¯¯ ¯¯¯¯¯ ¯¯¯ ¯¯¯¯¯ ¯¯¯ ¯¯¯¯¯ ¯¯¯ ¯¯¯¯¯ ¯¯¯ ¯¯¯¯¯ ¯¯¯ ¯¯¯¯¯ ¯¯¯ ¯¯¯¯¯ ¯¯¯

Bonus Level: Beatdown
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Complete all 12 regular missions as well as secondary objectives to get this
bonus level. As of right now, I do not have a strategy on this. I would
appreciate any help from you readers if you have any strategies.