Man, that survival mode is boring. After almost falling asleep with no missiles hitting, I finally just let them win at level 16 with a multiplier of x38. Does that mode ever actually get difficult?
To those who think this game is too hard: you know you don't have to fight every single enemy, right? If the fight won't give you at least 3 gold per HP lost (about the cost of healing), skip it. And if you got sent way too far back when you died, it's your own fault. The escape wings exist for a reason.
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