I've been trying the last couple days to complete Cammy's Survival Mode on Normal. Unfortunately, I can't get past stage 27. Stage 26 and onwards is when the CPU starts going into God Mode and begins to block/counter every single move you throw at em on Normal.
It's 30 stages, so it should be worth a hefty sum of fight money. The amount of fight money you get is based on your score after completing, right?