The developers of online slot games constantly add bonus features to their online slot games in order to make it easier for gamblers to win big. Slot developers online are constantly adding bonus rounds, new jackpots and even instant jackpots to draw more players into their online slot games. These bonus rounds, instant jackpots and mini jackpots are often called "loops" (or "traps"). Online gamblers who want to win big on slot games should always review casino reviews and compare the payout rates. Also, they should be sure to read the terms and conditions of every online casino to ensure they have the best online casinos with real money.