Decadrop GBA

Decadrop
General
Author	Chris Lord
Type	Puzzle
Version	alpha
License	Mixed
Last Updated	2001/09/05
Links
Download
Website

Decadrop is a homebrew puzzle game where you make vertical lines of 4 or more consecutive coloured blocks by shifting rows left and right and rotating the grid. Simple, but fun to play.

User guide

The object of the game is to line up 4 or more blocks of the same colour vertically. You do this by shifting the blocks across and also by rotating the grid in which the blocks are located.

When you rotate the grid, this also rotates the gravitational pull, causing all the blocks to fall to the new "ground" direction. Various powerups will help you along the way, which will be discovered in-game.

Basic rules

• You cannot rotate while you are shifting.
• You cannot shift while you are rotating.
• If all blocks in a row are not perfectly aligned, you cannot shift that row.
• You cannot select another row while a row is being shifted.
• While rotation or shifting is occuring, gravity is no longer in effect.

Scoring

For each block you clear, you get the amount of blocks you cleared, squared, added to your score - this means, the more blocks you clear in one go, the more points you get (so it's better to try and clear 5+ in one go, rather than just 4).

Before the score is added to your total score, it is first multiplied by your current combo. You increase your combo by clearing blocks in quick succession (3.5 seconds maximum between each clear before the combo is reset). The speed increases as your score increases (level 5 is the maximum speed).

Game tips

Only read this if you are having troubles with the game.

• Use the turbo button at the start to progress gameplay quicker
• Make use of the rotation feature to align blocks. It is sometimes quicker than shifting them
• Try to maximise your score by increasing your combo
• It is harder to increase your combo when the game is running slowly - use the turbo button to align falling blocks better.

Screenshots

Online emulator

Can use gamepad or customise in the control settings.

Game Boy Advance	Keyboard

Controls

Up/Down - Select row

Left/Right - Shift row left/right

L/R - Rotate Grid

A - Turbo button (temporarily speeds up blocks to the top speed)

Start - Pause/Start game

A+B+Select - Reset

Compatibility

• Gameboy Advance emulator (VBA, iGBA recommended).
• Gameboy Advance with flash cart kit.

Changelog

Release 2001/09/06

• Fixed background display on real GBA.

Release 2001/09/05

• Reset button combination added.
• Major optimisations.
• Ability to die added.
• Intro screen added.
• Speed regulation.

Release 2001/09/02

• Pause button added.
• Background changed.
• Turbo button added.

Release 2001/08/29

• Scoring added.
• Combo-system added.
• Increasing speed system added.
• Background image added to grid.
• Slight optimisation.
• All known bugs fixed.

Release 2001/08/23

• First playable public release: See site for version revisions before this.

Credits

Decadrop is Copyright(c) 2001, Chris Lord.

External links

• Author's website - https://www.chrislord.net/page/46/
• GBADev - https://www.gbadev.org/demos.php?showinfo=414