This is the first time I have encountered a card that has the utility of debit, credit, loyalty and prepaid card all in one. Upon reading the Lala world whitepaper, at first I though it was just a basic wallet wherein you store your money like in bank accounts and then withdraw it when you need it, but then I've learned that you can also use it to pay directly. No more hassle withdrawing your money first before you can purchase a product. This is indeed a great idea. Kudos to the devs!
i am not sure whether lala card can be used both as debit and credit card since that would be very confusing because if for debit it will use the account balances available while in credit, the transaction will first take place then payment will come later upon due date. Loyalty card may be used simultaneously since it is just a storage of points earned for every transaction you made. Lastly, for prepaid card, it functions the same as debit card so I don't think that it is what you say lala card is.