Perk cards!! 
Perk card system is READY!
Let's officially introduce this concept to you, for the FIRST time.
These cards are useful tools. You can use them to improve your weapon, armor, your units' performance. You can even have perk which allows you to pickup Lunar Coins easier!
Today's perk is ...
Sector Permission Card Lv1!! 
With this, you can buy level 1 units in the store.
We will be talking more about Perk System next time!
Added
1- Perk-Sector Permission Card Lv1
2- Tutorial for Unit store
Tweaked
1- Simplified control hints for all screens
