diff --git a/public/sfx/aprilfools.mp3 b/public/sfx/aprilfools.mp3
new file mode 100644
index 0000000..d22a02b
Binary files /dev/null and b/public/sfx/aprilfools.mp3 differ
diff --git a/src/ts/changelogs.ts b/src/ts/changelogs.ts
index 6e0b337..ad2a66c 100644
--- a/src/ts/changelogs.ts
+++ b/src/ts/changelogs.ts
@@ -236,6 +236,7 @@ export const versionChangelogs: Changelog[] = [
         added: [
             "\"Cookies Per Click\" statistic.",
             "A button in Options to toggle auto-saving (#29)",
+            "April Fools event",
             "GitHub issues in changelogs work as hyperlinks, like this one: #13",
             "A \"removed\" section in changelogs",
             "Advanced popups now have options (#32)",
diff --git a/src/ts/clickercookie.ts b/src/ts/clickercookie.ts
index 700b1b9..30b450c 100644
--- a/src/ts/clickercookie.ts
+++ b/src/ts/clickercookie.ts
@@ -5,6 +5,7 @@ import { Upgrade, UpgradeData, UpgradeSave } from "./upgrades.js";
 import { SimplePopup } from "./popup.js";
 import { Identifier } from "./handler.js";
 import { Handlers } from "./handlers.js";
+import { Game } from "./main.js";
 
 // the description of almost every upgrade is the same, but just in case we want to add more upgrades in the future
 // a "desc" field has been added to the upgrades array. Most upgrade will just reference a this array, though
@@ -552,6 +553,34 @@ export default class ClickerCookie extends Mod<ClickerCookieSaveData> {
                 title: "woo hoo!"
             });
         }
+
+        if (date.getMonth() === 3 && date.getDate() == 1) {
+            Mod.registerKooh("click", () => {
+                if (Game.backgroundMusic.src.split("/").at(-1) === "aprilfools.mp3") return; // todo: can we make this a bit less janky or smth
+                Game.backgroundMusic = new Audio("/sfx/aprilfools.mp3");
+                console.log();
+                Game.backgroundMusic.volume = 0.5;
+                Game.backgroundMusic.play();
+                Game.backgroundMusic.addEventListener("ended", () => {
+                    Game.backgroundMusic.play();
+                });
+            });
+
+            const filter = document.createElement("div");
+            filter.style.position = "absolute";
+            filter.style.width = "100%";
+            filter.style.height = "100%";
+            filter.style.pointerEvents = "none";
+            filter.style.backgroundColor = "red";
+            filter.style.opacity = "70%";
+
+            document.body.appendChild(filter);
+
+            const message = document.createElement("h3");
+            message.innerText = "happy april fools";
+            message.style.marginLeft = "auto"; // centers it the way god intended
+            document.getElementsByClassName("left-middle-buttons")[0].after(message);
+        }
     }
 
     gameLoop() {
diff --git a/src/ts/main.ts b/src/ts/main.ts
index 85c1951..e01e1c7 100644
--- a/src/ts/main.ts
+++ b/src/ts/main.ts
@@ -89,12 +89,14 @@ export class Game implements SaveProvider<GameSaveData> {
     public static readonly GITHUB_REPO: string = "https://github.com/clickercookie/clickercookie.github.io";
     public static readonly CREDITS: Record<string, string> = {
         "FifthTundraG": "Creation",
-        "potatman4": "Playtesting",
+        "potatman4": "Supreme Musical Overlord",
         "Wolfsarecool44": "Playtesting, Emotional Support"
     }
     public static readonly DEFAULT_BACKGROUND: string = "clickercookie:blue";
     public static readonly DEFAULT_CURRENTLY_CLICKED_OBJECT: string = "clickercookie:cookie";
 
+    public static backgroundMusic: HTMLAudioElement = new Audio(); // todo: can we make this better or this fine
+
     public static getMousePosition(): MousePosition {
         return mousePos;
     }