The gaming part of this is that if you want Biology, Physics and Chemistry as separately issued awards you need to take B1, B2, B3, P1, P2, P3, B1, B2 and B3 probably in one session at the end of Y11.
The alternative would be to do B1, B2 and B3 in Y9, C1, C2 and C3 in Y10 and P1, P2 and P3 in year 11 (or some permutation of that), although I've never heard of a school doing that.
The key point is that in order to get a Biology GCSE, you have to have sat the three components in one session, and likewise for the other single sciences.
The increasingly common strategy is to do C1, B1 and P1, that's Core Science, the C2, B2 and P2, that's Additional Science, then C3, B3 and P3, that's Further Science. That way you get back the ability to do it in stages.
Whether you do "triple science" or "separate sciences" you take the same papers on the same material. The only difference is staging and snobbery.