diff --git a/cli/Bank.py b/cli/Bank.py
new file mode 100644
index 0000000..9a92428
--- /dev/null
+++ b/cli/Bank.py
@@ -0,0 +1,21 @@
+class Bank(Target):
+    def __init__(self, targets):
+        self.targets = targets
+        self.__register_targets__()
+
+    def __target_hit__(self, target):
+        if all(target.is_hit for target in self.targets):
+            self.__all_targets_hit__()
+
+    def __all_targets_hit__(self):
+        self.__reset_all_targets__()
+        super.hit()
+        pass
+
+    def __reset_all_targets__(self):
+        for target in self.targets:
+            target.reset()
+
+    def __register_targets__(self):
+        for target in self.targets:
+            target.on(target.hit_key, self.__target_hit__)
\ No newline at end of file
diff --git a/cli/BankTarget.py b/cli/BankTarget.py
new file mode 100644
index 0000000..238b44c
--- /dev/null
+++ b/cli/BankTarget.py
@@ -0,0 +1,15 @@
+from Target import Target
+
+
+class BankTarget(Target):
+    def __init__(self, points):
+        super(points)
+        self.is_hit = False
+
+    def hit(self):
+        self.is_hit = True
+        super.hit()
+        #notify Bank
+
+    def reset(self):
+        self.is_hit = False
\ No newline at end of file
diff --git a/cli/FlippR_Networking.py b/cli/FlippR_Networking.py
index 95d1c9d..fb1a6b4 100644
--- a/cli/FlippR_Networking.py
+++ b/cli/FlippR_Networking.py
@@ -46,4 +46,10 @@ class Networking:
         self.get("/displays" + display + "/write_score/" + str(score))
 
     def getInputEvent(self):
-        return self.input_socket.recvmsg(4096)
+        header = ''
+        while b'2' not in header:
+            header += self.input_socket.recv()
+        
+        length = int(header[:-1])
+        
+        return self.input_socket.recv(length)
diff --git a/cli/Main.puml b/cli/Main.puml
new file mode 100644
index 0000000..1881008
--- /dev/null
+++ b/cli/Main.puml
@@ -0,0 +1,71 @@
+@startuml
+class Observable {
+    trigger(string event)
+    on(string event, function fun)
+}
+
+class FlippR
+
+class Game
+
+Game --* Cabinet : isAchievementStrategy ?
+Game --* State : observes >
+Game "1" --* "*" TargetStrategy
+
+class TargetStrategy
+Target "1" o-- "1" TargetStrategy : observe <
+State o-- TargetStrategy : changes <
+
+class State {
+    int ballsLeft
+    int currentBall
+}
+
+State --* BallState
+
+class BallState {
+    int score
+    int globalMultiplier
+    addScore(int points)
+}
+
+class UpperPlayFieldTimer {
+    int timeLeft = 0
+    start()
+    stop()
+}
+
+BallState --* UpperPlayFieldTimer
+class Cabinet {
+}
+
+Observable <|-- Cabinet
+Cabinet "1" --* "*" Target
+
+Observable <|-- Target
+abstract class Target {
+    int points
+    string name
+    hit()
+}
+
+class AchievementTarget {
+
+}
+
+Target *-- AchievementTarget
+Target <|-- AchievementTarget
+
+class BankTarget {
+    bool isHit
+    hit()
+    reset()
+}
+Target <|-- BankTarget
+
+class Bank
+
+Target <|-- Bank
+Bank "1" --* "1..*" BankTarget : observe >
+
+@enduml
\ No newline at end of file
diff --git a/cli/Target.py b/cli/Target.py
new file mode 100644
index 0000000..9ae693d
--- /dev/null
+++ b/cli/Target.py
@@ -0,0 +1,10 @@
+class Target(Observable):
+    def __init__(self, points, name):
+        self.points = points
+        self.name = name
+        self.hit_key = "hit"
+
+    def hit(self):
+        #notify Observers
+        #notify Gamestate
+        self.trigger(self.hit_key, self)
\ No newline at end of file