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Really Bad Eggs 20110918

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Really Bad Eggs is a remake of Super Foul Egg, itself a clone of Puyo Puyo
released for the Commodore Amiga in 1995.

• Game Mechanics
Coloured eggs drop down the screen in pairs. They can be rotated in clockwise and anticlockwise directions. The objective is to arrange eggs of the same colour so that their edges touch and the eggs connect. When four or more eggs of the same colour are connected in a chain, the eggs disappear from the grid and any eggs above them drop down to fill the vacated space.
Scores increase dramatically if:
- More than four eggs are connected in a single chain;
- Several chains are removed at once;
- The removal of a chain causes eggs to fall, which in turn makes additional
chains of eggs.

• Game Types
Really Bad Eggs features three basic game types.
- The first is a single-player
practice mode. Play continues until the grid fills with eggs to the point that
no more eggs can be placed.
- The second is a two-player mode against the CPU. Each time chains are made in this mode, garbage eggs are dumped into the opponent's grid. These grey eggs do not connect with other eggs in the grid and can only be removed by creating chains with eggs adjacent to them. The number of garbage eggs generated bychains is related to the number of blocks removed in those chains, so creating more chains, longer chains or sequences of chains will create more garbage eggs.
- The last mode is a two player game. Two human players battle it out on one DS. The player on the left uses the up, down, left, right and L buttons. The player on the right uses the A, B, X, Y and R buttons.

• Menu System
When the game is booted up a menu system is presented. Use the d-pad to choose from the highlighted options. Press A to accept the selected option and move to the next menu. Press B to return to the previous menu. Press Start to accept all currently-selected options and skip straight to the game.

The menus are as follows:
- **Game Type**: Choose from the practice game type, the easy/medium/hard player-vs-AI types, or the two-player game.
- **Speed**: Choose the speed at which the eggs drop down the grid. Faster speeds mean less time to think.
- **Height**: Choose the starting height. The number corresponds to the rows of garbage eggs added to the grid at the start of the game. More rows mean the game is initially faster paced and harder.
- **Colours**: The number of different colours of eggs in the game. Each additional colour reduces the chance of a particular colour egg being created, making it more difficult to set up elaborate sequences of egg chains.

• Controls - Practice and Vs CPU Modes
* Move shape left: Left
* Move shape right: Right
* Drop shape: Down
* Rotate clockwise: A
* Rotate anticlockwise: B
* Pause/unpause: Start
* Select: Quit to menu (when paused)

• Controls - Two-Player Mode
**Player 1**
* Move shape left: Left
* Move shape right: Right
* Drop shape: Down
* Rotate clockwise: L
* Rotate anticlockwise: Up

**Player 2**
* Move shape left: Y
* Move shape right: A
* Drop shape: B
* Rotate clockwise: R
* Rotate anticlockwise: X

* Pause/unpause: Start
* Quit to menu (when paused): Select

• Scoring
The formula for each chain is:
10 * eggs * (eggs - 3) * sequence

- eggs is the number of eggs in the chain;
- (eggs - 3) is the number of extra eggs in the chain above the 4 minimum;
- sequence is the number of times the grid has chained and dropped in sequence.

If a player explodes a chain of 4 red eggs and a chain of 5 green eggs simultaneously, he gets the following scores:
10 * 4 * (4 - 3) * 1 = 40
10 * 5 * (5 - 3) * 1 = 100
He gets a total of 140 points for the two chains.
The grid drops down to fill in any gaps, and in doing so creates another chain of 4 blue eggs.
These explode giving the following score:
10 * 4 * (4 - 3) * 2 = 80
He gets 10 points for each egg (10 * 4 = 40). The chain includes only the
minimum number of eggs (4 - 3) so he gets no bonus there. However, this is the second set of chains exploded, so the final score is doubled (40 * 2 = 80).
The running total so far is 220.
The grid drops to fill in any gaps again, and two more chains are created: 6 yellow eggs and 5 orange eggs.
The scores this time are:
10 * 6 * (6 - 3) * 3 = 540
10 * 5 * (5 - 3) * 3 = 300
The total for these two chains is 840, giving an overall score of 1060.
Play then resumes, and the sequence multiplier resets to 1.

• Garbage Eggs

The number of garbage eggs generated by chains is calculated via two forumulae.
For the first group of chains the formula is:
blocks - 3
If the player creates a chain of 5 blocks, the garbage created is:
5 - 3 = 2
If the player creates a chain of 5 blocks and a chain of 6 blocks simultaneously, the garbage created is:
5 + 6 - 3 = 8

In subsequent groups of chains, the formula is as follows:
blocks - 4 + 6
So, if the player creates a chain of 5 blocks, which falls to create a chain of 7 blocks, the formulae are:
5 - 3 = 1 (first chain)
7 - 4 + 6 = 9 (second chain)
= 10 (total)

Change log (20110918):
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