Rock Paper Scissors game v.2

RockPaperScissors.py

# Rock, Paper, Scissors game V.2
# By: Sergio Camalich
# Website: www.camali.ch

# Import modules
import sys
import random
import time

# Scores
wins = 0
loses = 0
ties = 0

# Strikes
strikes = 0
balls = 0
fouls = 0

# Agreements
yes = ('y','yes')
no = ('n', 'no')

# Are we playing?
def Play():

    global wins
    global loses
    global ties

    # What are our options? 
    options = ('rock', 'paper', 'scissors')

    playing = 'y'

    while playing in yes:

        # Users and their choices
        human = input('Choose between \'rock\', \'paper\' or \'scissors\': ').lower()
        computer = random.choice(options)
        
        #Wrong choice?
        while human not in options:
            print ('\nYo! That\'s not a word I asked for.')
            Strike()
            human = input('Choose between \'rock\', \'paper\' or \'scissors\': ').lower()

        # Say 'ROCK, PAPER SCISSORS!'
        for n in options:
            print ('\n', n.upper(), '!', sep='')
            time.sleep(.3)

        # Print users choices
        print ('\nYou picked:', human.upper())
        print ('Computer picked:', computer.upper())

        # Testing results:

        # Same choice?
        if human == computer:
            print ('\nIt is a tie!')
            ties += 1
        # Human loses?
        elif (human == options[0] and computer == options[1]) or (human == options[1] and computer == options[2]) or (human == options[2] and computer == options[0]):
            print ('\nYou lose!')
            loses += 1
        # Human wins?!
        elif (human == options[0] and computer == options[2]) or (human == options[1] and computer == options[0]) or (human == options[2] and computer == options[1]):
            print ('\nYou win!')
            wins += 1

        # Prints Total Results        
        print ('\nTotal wins:', wins)
        print ('Total loses:', loses)
        print ('Total ties:', ties, '\n')

        PlayAgain()

# Whas is PlayAgain()?
def PlayAgain():

    global yes
    global no

    # Play again?
    playing = input('Would you like to play again?(y/n): ')

    # YAY! :D
    while playing in yes:
        print()
        Play()

    # NAY! :(
    if playing in no:
        print ('\nThanks for playing!')
        sys.exit()

    # Lol, WAT?
    else:
        Strike()

# What is Strike()?
def Strike():

    global strikes

    # This is a strike
    strikes += 1

    while strikes <= 3:

        # Indeed it is...
        print ('\nThat\'s strike', strikes, '\n')

        # Strike 3!
        if strikes == 3:
            print ( strikes, 'strikes! YOU\'RE OUT!')
            sys.exit()

        PlayAgain()

    print()         

# Can we FINALLY play?    
Play()