Collapse! is another entry in the color-matching, block-removing series by
GameHouse. This entry has nine gameplay variations, and a new avatar system.
The basic mechanics remain unchanged: the player has to click on groups of
three or more blocks of the same color to remove piles of them from the field
and finish the level. If the blocks accumulate and reach the top of the
screen, the game is over.

In the main adventure mode, the player has to complete a series of levels to
move the custom avatar on a map and reach the final area boss. Each level has
one of the available gameplay variations, with branching points on the path
giving a choice between game types. Coins are received after completing each
level, to be spent on special items on the shop like avatar accessories,
power-ups and to unlock new games for the Quick Play mode. Extra coins can be
earned by playing the arcade slots and pachinko machines, and extra items can
be won on the spinning wheel.

The power-ups are stored in an area besides the gamefield, from where they can
be selected and used directly on the blocks to destroy them. The super bomb
explodes a large area pulverizing all surrounding blocks, the row-column bomb
removes a cross of tiles, the color bomb eliminates all the pieces that share
its hue, the rainbow bomb deletes all the squares that share the color of the
selected block, the hourglass temporarily stops the continuous addition of new
rows to the field, the scrambler shuffles the blocks, the warp bomb sends a
series of tiles to another board, the row bomb makes a whole line vanish from
the game, the gravity bomb moves all blocks from one end to the other, and the
color swap bomb moves all pieces of one color to another board.

The variations encountered on the Adventure Mode can be accessed later and
played directly on the Quick Play Mode. In the Classic game, lines of blocks
are continuously added to the bottom of the screen, and the objective is to
remove all the tiles to clear the board. In Relapse, the rows are added to the
top and the bottom of the field. In Strategy, new blocks are only added after
other tiles have been removed from the board. Continuous is an endless
variation, where an infinite amount of pieces is added to the field until the
player can’t keep up and the game is over. In Puzzle, the goal is to carefully
remove all the tiles of a drawing made with the blocks, without any new pieces
entering the board. The remaining four variations, Double Classic, Double
Relapse, Double Strategy and Double Continuous, repeat the previous mechanics
but add an extra grid to be managed by the player.

Collapse!