Grand Theft Auto: San Andreas Easter Egg - GTA III References

Here's four GTA III references I found in San Andreas:
1. A character who pops up in a few missions is Claude, the silent protagonist from GTA III and apparently Catalina's new boyfriend.
2. Maria, Salvatore's 'girlfriend' from GTA III pops up briefly in a few missions in Las Venturas as a waiter.
3. In one mission, CJ flies out to Liberty City. Fans of the original will recognize a familiar bistro CJ visits.
4. The slot machines in the casinos in Las Venturas have past game characters on them.

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