Slots are fun to play, but it appears as you bid higher the winnings or the slot features are few and far between. There are some serious loading issues and screen resolution issues for some of the slots. When you play a slot too long it stalls or the reels keep spinning. Developers need to check their app. I reached to level 153, but simply just got tired of signing in and out of the app. This is not fun! App is on Google Play Store. Will check back to see if bugs have been fixed.