In Mr. Driller: Drill Land, you can obtain cards with information on the characters and worldbuilding as you played, unlocking more as you advanced through level difficulties. Because Drill Land finally received a localization in 2020, these cards have been officially translated! Below is each different card you can obtain, unlocked directly by the site admin.
These can be unlocked from the beginning.
These can be unlocked when all Lv. 1 stages are complete.
These can be unlocked when all Lv. 2 stages are complete.
These can be unlocked when all Lv. 3 stages are complete.
Believe it or not, there's a completion bonus! Collecting all 50 cards awards a replica Mr. Driller trophy.