Bests & Worsts Reviews from Amazon

I was really hyped for roblox on my kindle fire. I downloaded it and made my account. I was so hyped until I clicked on games and tried to play a game. My screen stayed black! I realized that in the description, it says that it is only compatible with kindle fire hdx and newer. ROBLOX U HAVE FAILED US! Please update it so that it can be played on lower gens. I might rate it 5 stars! :( plz update.