the bottom of the screen. When it is filled, the player advances to the next level, where the base score is multiplied by the current level's number, with the points needed to level up increases every level. The game ends when no moves are possible. The Action mode features similar gameplay to Classic, with the progress bar acting as a timer. The timer bar slowly retracts as the player does not make matches. Making matches fills up the timer bar. In later levels, the timer bar drains faster. If it drains completely, the game ends. Unlike Classic, the player cannot run out of moves. The Puzzle mode involves attempting to clear all gems off several boards. Puzzle features 80 puzzles, each of which is divided into 16 "planets", each planet having five puzzles. The player progresses as they complete puzzles. When four puzzles are completed on a single planet, the player is allowed to progress to the next planet, though the player can complete the remaining puzzle to complete the planet. If the player makes a mistake or runs out of moves, the player can use the Undo function to undo their previous move. Additionally, the player can use the Hint function. Reaching the end of the 16th planet will play a credits sequence. The Puzzle game mode does not appear on the iOS and Android versions of the game. The Endless mode, as its name implies, is an endless variant of the Classic mode. The player cannot run out of moves and can play for as long as they want. Unlike Classic, the score count does not multiply. Specific versions of the game (such as the computer and console versions of the game) feature a diamond collecting system, in which the player collects a diamond for every level they complete. The Blitz mode, which only appears in the iOS version of Bejeweled 2, is a port of Bejeweled Blitz, added in a later update to the application. Blitz involves scoring as many points as possible in one minute. Like its web counterpart, it features several gimmicks which appear only in this mode, such as Star Gems, Coins, Boosts, and Facebook integration. The Twilight mode is a secret game mode that plays similarly to Classic but with the gravity of the gems altering every move and gameplay being slower. It is unlocked by reaching Level 18 in Classic. The Hyper