Or simply LTD score system, it's another way to record your games.

It's more for fun and challenge. Comparing your LTD score with others will be... just LOL.

How the score works? I did make a document only for this:

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Level, Time and Deaths score, or LTD score.

Examples are explained with the first bomberman game.
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What's LTD score?

It's a number of points representing your record.
The score depends on your Level, Time and Deaths.
Normally it is used on single player games.
The lower the score is, the better it is.

How to calculate the LTD score?

Here is the formula:
Score = (Total time x ((Maximum level x (Death number + 10)) / (levels completed + 1))) / (Levels completed + 1)

Total time = The total seconds you played the game.
From pressing start on the title screen to ending your game.
You can also stop on the middle of the game.
I recommend using a stopwatch to record your time.
Begin before you press start and after you end your game.
End your game only in these 3 screens:
-A level number appears.
-A game over appears.
-Congratulations appears. (After level 50)
The lower it is, the better your score.

Death number = It's how many times you lost a life.
The lower it is, the better your score.

Levels completed = The highest level you completed.
The level is completed when the next level's number appears.
For example, when "Level 7" appears, you completed level 6.
But you didn't complete level 7. So, it's level 6 that you will put in the formula.
When the congratulations screen appears, put 50 in the formula.
The higher it is, the better your score.

Maximum level = The highest level you can reach in the game.
In the First bomberman game, you can reach up to level 50. So, put 50 in the formula.
The lower it is, the easier it is to get a better score.

Can i use this on other games?

Yes. But it needs to have a maximum level and deaths.
And the levels must have numbers.

End of file.
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Any suggestions?