Points were a mechanic introduced in Battle for Dream Island during "A Leg Up In The Race" to "Rescission", where the mechanic was later replaced with an immunity system.
Over the course of the episodes where points were being used, contestants would gain or lose points depending on their results on the episode's challenge. At the end, the bottom portion of the contestants with the least scores would be held up for elimination for next episode.
During the last few episodes where points were still being used, it went through a change in the episode "Reveal Novum" where it had became a wooden board, and could only hold 2 digit numbers at a time.
The points system hasn't returned in the second, third or fourth seasons.
Scoreboard
Legend
N/A means the contestant has been eliminated since that episode.