This is a puzzle based on SET! Each of the first four picture rolls is a set board of 12 cards with a unique solution.
1: One blue filled squiggle, two green striped squiggles, three red empty squiggles.
2: Two red empty diamonds, two red striped diamonds, two red filled diamonds.
3: One red empty oval, one blue empty oval, one green empty oval.
4: One green filled diamond, two green striped diamonds, three green empty diamonds.
To "identify" your fifth friend, combine all four of these sets into a fifth board. There is only one unique set that was not previously found.
5: One red empty oval, two red empty diamonds, three red empty squiggles.
Matching each one of these cards to the grid yields the final answer.