Luckily, you do not need to collect every single Glorb in Super Hardcore Mode. You only need to collect every single one in the campaign once (you will see a Glorb medal on a completed level) while also completing every level of the Helladeck.
Although the Helladeck Glorbs hardly add to the percentage in the Achievements app, they do count, just very slowly. The levels from the story mode are weighted much more than the Helladeck and thus count for much more.
With the Ultra Update, Glorbs and Shards were added to the boss levels. Each world has a boss at the end, except for the last world that has 2 bosses. Collect all of the Glorbs/Shards in those levels to get the badges, beat the Helladeck, and this will unlock.