The Episode Prompto Add-on for Final Fantasy XV has 7 achievements worth 210 gamerscore.
Stealth-killed 3 enemies.
Took down 30 enemies with crackshots.
Took 10 photos mid-battle using Selfie Shot.
Completed EPISODE PROMPTO on Normal.
Defeated the kaiser behemoth.
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Earned the top ranking on all three Time Trial courses.