Ninjutsu solutions

Ninjutsu was solved using C++ by 4 contestants. Solution sizes: average 5222 bytes (shortest: 2205; longest: 10409).

ACRush (S) (10409 B)
12.

Eryx (S) (5211 B)
13.

earl (S) (2205 B)
15.

RAVEman (S) (3063 B)