Let's clear puzzles with main character Hammy (hamster)!Simple rules!Clear a puzzle by passing through each number in order!Cannot move through the same block twice!Stage has 2 faces and you can flip between them!There're 3 kinds of blocks "Normal" ,"Number" and "Obstacle"!Flip between the front and the back!Wanna pass the number block on the other face? There are obstacle blocks in front of you?You can pass them by flipping the face of the stage!The input swapped gimmick will appear!When you cleared a certain amount of stages, the input swapped gimmick will appear!Can you clear the harder puzzles?2 modes: "Ranked mode" and "Practice mode"If you want to see how many clear stages within the time limit, choose "Ranked mode"!If you want to play in your pace, choose "Practice mode"!Find out various version of Hammy!As you advance in this game, you can find various version of Hammy in your collection!