Feedback requested for my Android game - Let There Be Light Thread

Ok guys, I've released a game on Andorid called 'Let There Be Light'. It's a casual gamewith minimalist controls. Now it's been about 20 days and the game has got about 100 active users from a total downloads of 170 which gives a current retention of 59%. I am not sure if that's a good figure or not but obviously it means 41% of users play the game for a few days and never come back to it. So I was hoping you guys could download the game and give feedback, especially on how you think I can improve the game to increase retention percent. Find more details on the game below

Google Play

Amazon AppStore

Youtube Gameplay Video

Let There Be Light - A game where you
-Master the dark
-Collect light bulbs to ignite the light
-Challenge your reflexes, avoid obstacles
-Get achievements
-Tap away and test your patience!

Edited by: crusty210