Developer 
Features Niềm Vui Tràn Trề, also listed as XIYANGYANG, is a JILI slot released in 2020 with 40 paylines and low-to-medium volatility. The game uses a 4x5x5x5x4 layout and carries a reported maximum win of 1500x. It is described with a village setting, firecracker effects and symbol-based features that drive its main play.
The slot includes Wild symbols and a Special Win feature. According to the game description, firecrackers can change small symbols into larger ones, remove symbols from the board, or place payline prizes without standard paylines. These random effects are central to the game mechanics and may appear during normal spins.
This demo version lets players play for free and practice before playing for real money. The page is intended as a quick review beside the launcher, giving a concise overview of the game rules, symbol features and bonus-style effects without requiring an account or stake.
