You build the game! Build your game then block n bump to 4-in-a-row! Bumpers send checkers in different directions! Assembly is only half the fun as you build your grid and bumpers brick by brick. Then bump drop & block. Move the bumpers and drop in your checker! Where will it go? Straight on down or ricochet around? The bumpers add another level of fun - because you never know where your checker will go! Got 4-in-a-row? You win! Play it our way or change things up! Rearrange the bumpers or put a twist on the rules to send the game in a whole new direction!For 2 players age 6 and up.Contents Include: Includes 158 building parts (110 U-BUILD bricks & 48 construction pins) 21 red checkers 21 yellow checkers 1 gameboard with stand assembly guide and game guide.