Features: 1. Be made of ABS material, safe and non-toxic, smooth edges and durable, perfect for kids to play. 2. 4 kinds of game methods, including breakthrough level mode, memory mode, score mode, and multiplayer mode. 3.How to play it: Checkpoint mode, follow the button light for quick reaction; Memory mode, press the buttons in order; Points mode, turn off as many lights as you can within a minute; Two player mode, two people take turns to press the button 4. It can help kids to improve their logical thinking ability, reaction ability, memory and logical thinking ability. Breakthrough Game Machine is a funny gift for kids. Specification: Material: ABS Power supply: 3*AAA batteries(not included) Package Content: 1 X Decompression Breakthrough Puzzle Game Machine