diff --git a/exercise-009-rock/src/rock/game.go b/exercise-009-rock/src/rock/game.go
index d6a4e87..1822200 100644
--- a/exercise-009-rock/src/rock/game.go
+++ b/exercise-009-rock/src/rock/game.go
@@ -15,12 +15,12 @@ const (
 
 // Game ...
 type Game struct {
-	players []*Player
+	players []Player
 	points  []int
 }
 
 // Add adds a player to the game
-func (g *Game) Add(p *Player) {
+func (g *Game) Add(p Player) {
 	g.players = append(g.players, p)
 	g.points = append(g.points, 0)
 }
@@ -33,7 +33,7 @@ func (g *Game) RoundRobin() {
 
 	n := len(g.players)
 
-	// For Each Player
+	// For Each RandoRex
 	for i := 0; i < n-1; i++ {
 
 		// For Each Opponent
diff --git a/exercise-009-rock/src/rock/player.go b/exercise-009-rock/src/rock/player.go
index 6657f48..a70da8a 100644
--- a/exercise-009-rock/src/rock/player.go
+++ b/exercise-009-rock/src/rock/player.go
@@ -4,17 +4,65 @@ import (
 	"math/rand"
 )
 
-// Player ...
-type Player struct {
+type Player interface {
+	Type() string
+	Play() int
+}
+
+type Flipper struct {
+	MoveA int
+	MoveB int
+}
+
+func (p Flipper) Type() string {
+	return "Flipper"
+}
+
+func (p Flipper) Play() int {
+    moves := []int{p.MoveA,p.MoveB}
+    return moves[rand.Int() % len(moves)]
+}
+
+type Obsessed struct {
+	Move int
+}
+
+func (p Obsessed) Type() string {
+	return "Obsessed"
+}
+
+func (p Obsessed) Play() int {
+	return p.Move
+}
+
+type Cyclone struct {
+	MoveCount int
+}
+
+func (p Cyclone) Type() string{
+	return "Cyclone"
+}
+
+func (p Cyclone) Play() int {
+	p.MoveCount++
+	moves := []int{Rock,Paper,Scissors}
+	return moves[p.MoveCount % len(moves)]
+
+}
+
+
+
+// RandoRex ...
+type RandoRex struct {
 }
 
 // Type returns the type of the player
-func (p *Player) Type() string {
+func (p RandoRex) Type() string {
 	return "RandoRex"
 }
 
 // Play returns a move
-func (p *Player) Play() int {
+func (p RandoRex) Play() int {
 	choice := rand.Int() % 3
 	return choice
 }
diff --git a/exercise-009-rock/src/rock/rock.go b/exercise-009-rock/src/rock/rock.go
index ff1ccfb..7243252 100644
--- a/exercise-009-rock/src/rock/rock.go
+++ b/exercise-009-rock/src/rock/rock.go
@@ -6,9 +6,12 @@ func main() {
 	game := &Game{}
 
 	// Add Players
-	game.Add(&Player{})
-	game.Add(&Player{})
-	game.Add(&Player{})
+	game.Add(&RandoRex{})
+	game.Add(&RandoRex{})
+	game.Add(&Flipper{Rock,Paper})
+	game.Add(&Obsessed{Paper})
+	game.Add(&Obsessed{Scissors})
+	game.Add(&Cyclone{})
 
 	// A Thousand Round-Robins!
 	for i := 0; i < 1000; i++ {