Clear the game once with the first three characters (Ironclad, Silent, and Defect) to begin seeing the Red, Green, and Blue keys in subsequent runs.
On the Android version, after you finish a run with a character, go to "Statistics" -> "Character Stats." You will see a tiny "Unlock Beta Art" button next to each card. It costs a massive amount of XP to unlock these alternate cartoonish drawings. slay the spire android unlock everything exclusive
Third-party websites and modded APK repositories sometimes advertise a version of Slay the Spire for Android that claims: Clear the game once with the first three
How do I unlock the rest of the cards on mobile? : r/slaythespire go to "Statistics" ->
There is often confusion regarding "exclusive" content on Android. Here is the reality of the situation: