Crash Bandicoot

Crash Bandicoot is the main character of a different video game series, but he apears in Spyro: Fusion and you can unlock a demo of three of his games in the PS1 Spyro games. Spyro met Crash during Fusion when an army of riptoc desgised as bandicoots attacked Dragon Castles. Crash and his friend Aku Aku apeared outside the Castle on a bridge. Spyro and Crash battled eachother by throwing bombs at one another and repairing destroyed sections of their bride/castle (winning is simple enough, though). After the fight Crash and Spyro realise Cortex and Ripto's true plans and team up to save the world (It is unknown if Spyro and Crash remain allies because Crash is absent in Shadow Legacy). Crash isn't much of a talker, but he can yell "whoa!" loudly.