Crash Bandicoot and Spyro the Dragon have ventured into each other's worlds to save the universe in the latest installments from these top-selling videogame franchises. Vivendi Universal Games (VU Games) has shipped Crash Bandicoot Purple: Ripto's Rampage and Spyro Orange: The Cortex Conspiracy on the Game Boy Advance. In these action platformers, Crash journeys to the fiery dragon's Dragon Realms to help Spyro destroy his archenemy, Ripto, while Spyro blazes into the irrepressible bandicoot's …