Four modes are included. Classic mode is just as described. In Pair mode, two caterpillars start from the center and work their way up and down. In Race mode, 12 caterpillars start from the bottom and go to the top. Be careful not to let any of them get too far ahead, or else it will be difficult to keep them down. Finally, in Conundrum mode, 999 puzzles are included, and your task is to clear all blocks from the field quickly.