v5.6.0 update (10.20)
# 4 new drills have been added.
# New minigame [Take Items] has been added.
# The delay of mini games has been eliminated. You can get more ruby.
# New game ranking has been made.
# Depth limit of the latter drill is slightly reduced. You can reach the rare box excavation area faster.
# You can use Ruby to open the rare box once more.
# Ruby price of automatic buffs has been adjusted.