Yes, absolutely! You can choose to redeem any item you like using your available BonusLink Points.
If you don't have quite enough Points to cover the full value of the reward, all of your available Points will be utilized first. You can then easily pay the remaining balance in Ringgit Malaysia (RM) using your credit/debit card, where applicable.
Please keep in mind that the availability of this Points + Cash option can vary depending on the specific reward you have selected. (amend its quiet confusing)