Level analalysis: SMW Yoshi´s Island 4

T1 Training Wheels challenge:
Single sinking platform: H(N, 1), W(1, 2)
Mario falls from above, jump with delta height  = 0, width = 2 to exit.

S1 Standard challenge:
Single sinking platform. H(1,1), W(1,3)

V1 Evolution challenge:
2 sinking platforms: H(0, 0, 0), W(2, 3, 1), I(0, 0, 0A)
This is an evolution because it adds something new (an intercept) rather than just modifying the existing characteristics of the challenge.

E1V1 Expansion challenge:
2 sinking platforms: H(N,0,2), W(3, 3, 1), I(0, A, 0)

Reward by fun/Crossover challenge

E2V1 Expansion challenge:
2 Sinking platforms: H(-3, 0, 3), W(2, 3, 1), I(0, A, A)

E3V1 Expansion challenge:
3 Sinking platforms: H(-3, 0, 0, 3), W(2, 3, 3, 2), I(A, A, A, 0)

M1V1 Mutation Challenge:
Sinking platforms: H(-3, 0, 3), W(2, 3, 1), I(A, 0, B)
This is a mutation because it modifies an already existing component (an intercept). I t really doesn´t add anything new to the challenge it mutates, it just changes it slightly. The skills used are the same as before.

Cadence:
T1-S1-V1-E1V1-E2V1-E3V1-M1V1.
Basically, the level presents the challenge, then evolves it by adding an intercept, and then lays out a series of different expansions which make the meat of the level, ending with a mutation.