Jeffrey Bardon first joined the Chip's Challenge community back in 2007, having first played the original set around 10 years prior. Upon discovering that level editors and custom levelsets existed, he quickly began designing his own. At the time, there was no interest in optimization, though this has since changed. Near the end of 2007, Jeffrey took a long hiatus from the game, going back every once a while over the next 6 years, but eventually returning in early 2014, 2 months before the release of CCLP1, unfortunately missing out on submitting levels for the pack.
Jeffrey is one of the CCLP4 staff co-leaders alongside Josh Lee.
Levels in official packs
Chip's Challenge Level Pack 3
Jeffrey's first few sets were small and simple, most notably from this period was 25 levels.dat, which was LP'd by Rockdet. This was one of the factors that re-piqued Jeffrey's interest in Chip's Challenge, alongside James Anderson starting an LP of his next set: Ultimate Chip.dat. This 150 level set is still available on Pieguy's site, though Jeffrey admits many of the levels are lackluster and abuse the Invalid tile. Immediately after releasing this set, he began work on what would be "the most epic CC set ever", a 999 level epic Ultimate Chip 2. None of these levels were very good either, and the file was lost to a CCEdit bug.
Around 2010 Jeffrey began work on a true sequel, the real Ultimate Chip 2, and got about halfway to 149 levels before taking a large interest in Touhou and speedrunning: 2 hobbies that had a large impact on both his level design and playstyle. On his return to the community in 2014, he spent the next 2 months finishing the set and released it onto CCZone. In hindsight, it falls into many of the traps of CCLP3 with overly convoluted puzzles and arduous level design.
This was meant to be Jeffrey's final large set, due to a lack of ideas, but the release and subsequent blind race of CCLP1 inspired him, and he began work on what would originally be a 50 level set, Ultimate Chip 3. However, 50 levels were reached much sooner than expected, and as he was not out of ideas, the set expanded into another full 149 level set, slated to be released in October 2014. Jeffrey also has a ruleset-specific set called Ultimate Chip i^e available on pieguy's site, taking the role of the traditional rejects set.
The second half of 2014 saw the creation and release of Ultimate Chip 4. Regarded to be Jeffrey's best set, it focused more on interesting and fun concepts, as well as varied gameplay throughout, resulting in an experience very similar to CCLP1. Many levels in this set drew inspiration from other levels and even other games, mostly from the Playstation 1. In 2015, Jeffrey began work on Ultimate Chip 5, and released the 80 levels it contained when CC2 was released on Steam. From December 2015 through mid February of 2016, Jeffrey created another 69 levels and merged these into UC5, completely re-ordering the set while doing so.
Jeffrey has said he will continue designing levels as long as he has ideas for them.
- CC1 MS: 5,977,200 (7th)
- CCLP1 MS: 6,005,820 (2nd)
- CCLP2 MS: 6,044,270 (14th)
- CCLP3 MS: 6,026,190 (14th)
- CC1 Lynx: 5,870,880 (6th)
- CCLP1 Lynx: 5,986,690 (5th)
- CCLXP2: 6,015,930 (3rd)
- CCLP3 Lynx: 5,982,040 (6th)
Jeffrey has relatively few records to his name, due to joining optimization so late, but has still managed to find additional seconds on a few levels, such as the first report of 231 Lynx on Mini Pyramid and finding the Lynx-only minor bust in Metal Harbor, extending its record from 775 to 787, and later 790, though the bold currently stands at 791. In MS he scored the first 236 on Mini Pyramid and  on Time Suspension, as well as worked with John Lewis on Mediterranean, extending its record from 489 all the way to 498 (and later 504), and improved the Cityblock bold by a single second, from 549 to 550.
Additionally, on returning he set a goal to outscore John Lewis on his first set, and over the course of a month optimized it. He currently stands 261 seconds ahead with 144/150 bolds, and says the experience has helped with block pushing techniques and familiarity with Teeth and Blob monsters.