Repeat Bonus Sprite - UnityScript

INTRO:

I'm using UnityScript and I'm still learning as I go. I am working on a match-3 game and it runs great. My issue is calling up sprites for bonuses. Right now I'm calling each sprite individually when a certain condition is met; however, this is very repetitive since I have to write code for each bonus individually.

CODE EXPLANATION:

I have a few lines of code that checks if the bonus condition is met (with some other conditions to double check that a bonus does not count twice).

1. It checks if the sprite has been used

2. If not, it will use the appropriate sprite in numerical succession

3. Each sprite/variable is named in succession, such as chain02Sprite, chain03sprite...and so on.

CODE:

 function ScoreChain()
 {    
 
     if(bonusCheck == false && chainTrigger == true && gameManagerScript.chainMultiplier == 2 && gameManagerScript.chain02Sprite == false)
     {
         bonusCheck = true;
         gameManagerScript.chain02Sprite = true;
         sprite.SetSprite("sprites_+2");
         BonusAnimation();
     }

     if(bonusCheck == false && chainTrigger == true && gameManagerScript.chainMultiplier == 3 && gameManagerScript.chain03Sprite == false)
     {
         bonusCheck = true;
         gameManagerScript.chain03Sprite = true;
         sprite.SetSprite("sprites_+3");
         BonusAnimation();
     }

 }

IMAGE:

QUESTION:

What would be the best way to set this up for 100 bonuses, instead of writing out each bonus check 100 times.

Thanks so much!