No it isn't.
In TRON you leave a trail behind. In Snake, you grow as you eat and drag your body along the path you crawled.
TRON's trail is static, Snakes body is dynamic.
And that difference only exists to support the single player vs multiplayer dynamic. If Snake left a Tron tail then it would be a very short, unfun experience. If Tron didn't leave a permanent trail then matches would last too long.