Bubbles - Little Big Planet
The difference between score and prize bubbles, visually speaking, is size. Score Bubbles are small orbs which are worth 10 points, and Prize Bubbles are larger bubbles that are worth 50 points. Besides, if you collect a certain Prize Bubble for the very first time, you receive the prize that it was holding.
You can score multiplier points in the following way:
[Every 5 Bubbles in a row] = 1 Multiplier (Max = x100)
Which means that if you score 5 to 9 bubbles in a row, you get a 2x multiplier, if you score 10 to 14 bubbles in a row you get a 3x multiplier, and so on. The highest multiplier you can get is 100x, which is gotten from 495 score bubbles in a row.
If your game is set in a different language than the one you want (perhaps English, the standard, so you can follow this guide more easily?), the only thing you have to do is go into your Playstation Menu and change the system's language. This will automatically adjust in LBP, with no effect to your save.
Using Other Save Games:
It is possible to use the save games of others, but keep in mind that you will not be able to gain any Trophies from this, plus not being able to score any Trophies while playing that save game. Besides, some saves are region locked.
Using Costume Codes:
There were several promotional codes to gain Kratos, Nariko, Minotaur, or Medusa costumes. You can use these codes up to five times, but only with one account. So, how do you go about doing this? You have to use the account, continue with an other account without deleting the used account from your Playstation, and you should be able to keep the costumes. If a Costume Code does not work, this is because it is region locked.