diff --git a/src/Main.sol b/src/Main.sol
index 8edabbc..bc4e3f0 100644
--- a/src/Main.sol
+++ b/src/Main.sol
@@ -49,17 +49,30 @@ pragma solidity ^0.8.13;
 //                     x x     xxxxx      xxxx                                          
 //                     x x     x.xxx      x x
 
+// This contract is the main logic interface for the Unaboomer NFT project.
+
+
 import {Owned} from "solmate/auth/Owned.sol";
 import {Unaboomer} from "./Unaboomer.sol";
 import {Mailbomb} from "./Mailbomb.sol";
 
 contract Main is Owned {
 
+    /// Price of the Unaboomer ERC-721 token
     uint256 public unaboomerPrice = 0.01 ether;
+    /// Price of the Mailbomb ERC-1155 token
     uint256 public bombPrice = 0.01 ether;
+    /// Unaboomer contract
     Unaboomer public unaboomer;
+    /// Mailbomb contract
     Mailbomb public mailbomb;
 
+    /// SendBomb event is for recording the results of sendBombs
+    /// @param from Sender of the bombs
+    /// @param tokenId Unaboomer token which was targeted
+    /// @param hit Whether or not the bomb killed the token or not (was a dud / already killed)
+    event SentBomb(address indexed from, uint256 indexed tokenId, bool hit);
+
     constructor() Owned(msg.sender) {}
 
     // =========================================================================
@@ -72,22 +85,26 @@ contract Main is Owned {
         payable(msg.sender).transfer(balance);
     }
 
-    /// Set price for 1 BOMB
-    function setBombPrice(uint256 _price) external onlyOwner {
-        bombPrice = _price;
-    }
-
     /// Set price for 1 BOOMR
+    /// @param _price Price in wei to mint BOOMR token
     function setBoomerPrice(uint256 _price) external onlyOwner {
         unaboomerPrice = _price;
     }
 
+    /// Set price for 1 BOMB
+    /// @param _price Price in wei to mint BOMB token
+    function setBombPrice(uint256 _price) external onlyOwner {
+        bombPrice = _price;
+    }
+
     /// Set contract address for Unaboomer tokens
+    /// @param _address Address of the Unaboomer / BOOMR contract
     function setUnaboomerContract(address _address) external onlyOwner {
         unaboomer = Unaboomer(_address);
     }
 
     /// Set contract address for Mailbomb tokens
+    /// @param _address Address of the Mailbomb / BOMB contract
     function setMailbombContract(address _address) external onlyOwner {
         mailbomb = Mailbomb(_address);
     }
@@ -96,6 +113,8 @@ contract Main is Owned {
     //                              Modifiers
     // =========================================================================
 
+    /// This modifier prevents actions once the Unaboomer survivor count is breached.
+    /// The game stops.
     modifier missionNotCompleted {
         require(
             unaboomer.killCount() <= (unaboomer.MAX_SUPPLY() - unaboomer.SURVIVOR_COUNT()), 
@@ -109,6 +128,7 @@ contract Main is Owned {
     // =========================================================================
 
     /// Get BOOMR token balance of wallet 
+    /// @param _address Wallet address to query balance of BOOMR token
     function unaboomerBalance(address _address) public view returns (uint256) {
         return unaboomer.balanceOf(_address);
     }
@@ -134,6 +154,7 @@ contract Main is Owned {
     }
 
     /// Get BOMB token balance of wallet
+    /// @param _address Wallet address to query balance of BOMB token
     function bombBalance(address _address) public view returns (uint256) {
         return mailbomb.balanceOf(_address, 1);
     }
@@ -153,6 +174,7 @@ contract Main is Owned {
     // =========================================================================
 
     /// Radicalize a boomer to become a Unaboomer - start with 2 bombs
+    /// @param _amount Amount of Unaboomers to radicalize (mint)
     function radicalizeBoomers(uint256 _amount) external payable missionNotCompleted {
         require(msg.value >= _amount * unaboomerPrice, "not enough ether");
         unaboomer.radicalize(msg.sender, _amount);
@@ -160,6 +182,7 @@ contract Main is Owned {
     }
 
     /// Assemble additional mailbombs to kill targets
+    /// @param _amount Amount of bombs to assemble (mint)
     function assembleBombs(uint256 _amount) external payable missionNotCompleted {
         require(msg.value >= _amount * bombPrice, "not enough ether");
         mailbomb.create(msg.sender, _amount);
@@ -169,23 +192,17 @@ contract Main is Owned {
     /// If the Unaboomer is already dead, the bomb is considered a dud.
     /// @dev Pick a pseudo-random tokenID from Unaboomer contract and toggle a mapping value  
     /// @dev The likelihood of killing a boomer decreases as time goes on - i.e. more duds
-    function sendBombs(uint256 _amount) external missionNotCompleted returns (
-        bool[] memory results,
-        uint256[] memory tokensKilled
-    ) {
+    /// @param _amount Amount of bombs to send to kill Unaboomers
+    function sendBombs(uint256 _amount) external missionNotCompleted {
         require(_amount <= bombBalance(msg.sender), "not enough bombs");
         require(_amount <= unaboomer.totalSupply(), "not enough supply");
-        bool[] memory res = new bool[](_amount);
-        uint256[] memory killed = new uint256[](_amount);
         uint256 supply = unaboomer.totalSupply();
         for (uint256 i; i < _amount; i++) {
             uint256 randomBoomer = uint256(keccak256(abi.encodePacked(i, block.timestamp, msg.sender))) % supply;
             bool dud = unaboomer.tokenDead(randomBoomer);
             unaboomer.die(randomBoomer);
-            res[i] = dud;
-            killed[i] = randomBoomer;
+            emit SentBomb(msg.sender, randomBoomer, !dud);
         }
         mailbomb.explode(msg.sender, _amount);
-        return (res, killed);
     }
 }
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