If you choose the “Walker/Extra” tier, your character will walk randomly up and down various locations. The time to cross a scene will be about 10-15 seconds, but consider you will appear more than once during the game!
If you choose to be an NPC (either human or robot), your character will be on screen as much as the player will visit that area or talk with you! This means you can be there for hours.
If you choose to put your name on a Neon Sign or your face on a Poster, you’ll be always visible in a specific location of the game. So you’ll always be there as much as the player visits that place.
If you choose the “Producer” tiers, your logo will also appear at the start of the game and will stay on screen for about 5 seconds (in addition to appearing as a Neon Sign in the game itself, as per point above).