Grand Theft Auto (PC)

Joyride.

Debug Mode
Start a new game with any character, but change the character's name to porkcharsui. You'll hear a car accelerating and burning its tires. A set of debug commands will be available in the game.

If you quit the game, this debug mode will not work when you play the game again. You have to delete the player's name and enter it again to reactivate it.

Vehicles
Helicopter. Doesn't really fly. When spawned in the game, it moves on the ground like a car.

Tram. Intended as the train equivalent for the San Andreas level, as evidenced by the tramway tracks found there.

Tiles
From San Andreas' 24-bit tileset.

Other
Intended for a Petrol Bomb item. This would eventually evolve to Molotov cocktails in Grand Theft Auto 2.

Alternate Graphics Set
The original split DOS/Windows release contains an alternate graphic set for 320x240x256 resolution. Curiously, it still uses the old DeluxePaint pallete, meaning it was probably done in 1995 when the game was still about dinosaurs.

Demo text
Texts carried over from the demo version. [m22demo]Time's up, sucker! Ya want more? Buy the real thing. [LoadingDemo]Loading Demo...

Vehicle names
[car10]Breakdown Truck [car12]Tram [car36]APC The Breakdown Truck and APC are just names, without corresponding images in the graphics files. From the other site, the Helicopter has graphics (as seen above), but no name declared in the text file.