Starting Vigilante missions in a Tank causes it to glitch into a silver color and glow red and blue instead of its normal green paint job.
Source: Glitches in GTA Advance — CC BY-SA
Mike's clone glitch here, but the real star is that tank going silver with red-and-blue flashers when you boot up Vigilante — goodbye army green!
A destroyed café that refuses to stay dead—glitch or ghost?
GTA: Vice City Stories
Rockstar had to shut down the entire Content Creator because of one money glitch
Saving at Madd Dogg's mansion permanently breaks every basketball court in the game
GTA: San Andreas
The clipboard that spawns forever
GTA V
A police station wall in Vice City lets you walk through reality itself
GTA: Vice City
The satellite dish is so tall that planes constantly suicide into it—and your girlfriend will call to complain.
GTA: San Andreas