Criar jogos com pygame é bastante fácil, aqui vai uma pequena demo.
Primeiro instalem o pygame com:
sudo apt-get install python-pygame
Depois é só gravar o ball.py :
import sys, pygame
pygame.init()
size = width, height = 800, 600
speed = [2, 2]
black = 0, 0, 0
screen = pygame.display.set_mode(size)
ball = pygame.image.load("/usr/share/pixmaps/mozilla-firefox.png")
ballrect = ball.get_rect()
while 1:
for event in pygame.event.get():
if event.type == pygame.QUIT: sys.exit()
ballrect = ballrect.move(speed)
if ballrect.left < 0 or ballrect.right > width:
speed[0] = -speed[0]
if ballrect.top < 0 or ballrect.bottom > height:
speed[1] = -speed[1]
screen.fill(black)
screen.blit(ball, ballrect)
pygame.display.flip()
E executa com:
python ball.py