i got this on accident and trying to find out what it does still LOL

This achievement just got much easier. You only need to collect 30 unique items now in a single run.

So, it would appear that this achievement ABSOLUTELY is NOT worth the trouble. All it does is change the game's background colour palette to a pink/white one. No other effect. One of the hardest achievments in the game, for a visual mod. Wish I hadn't bothered.

One thing that I learned while using Wiggle Woogle for this is that, you should prioritize legendary items, then common items. Because Wiggle Woogle has a higher chance to find rarer items, that inversely effects your chances on finding common items. in my experience with this challenge, I found that the items I always needed last were common items. Since the common loot pool is so congested, and Wiggle Woogle wants to give you more rare items, it was harder for me to get it done. My tip is that you get as many commons out of the way, after legendaries, that way you have a better chance at getting the items you need to complete the challenge