ChexQuest.js

Here’s a true story.

Back in the 90s, there was a video game you could only get inside a box of cereal. Not a demo. Not a coupon for one. The whole game. Free. On a CD tucked in next to the bag.

It was called Chex Quest, and it might be the greatest cereal prize ever made.

You play the Chex Warrior. Slimy green Flemoids have invaded and your job is to blast them back to their own dimension.

You don’t kill them. You “zorch” them home.

It was built on Doom but remade for kids so nothing dies and nothing bleeds.

It also worked. It sold a mountain of cereal, won a shelf of advertising awards, and quietly became one of the most loved giveaway games anyone ever made.

ChexQuest.js is my attempt at recreating that exact game but it plays in your web browser. No download, no install, no CDs (some of you don’t even know what those are ).

This is a fan project. It is not affiliated with General Mills, Digital Café, or id Software, and every trademark belongs to the people who own it. I made it for fun and for the memories of the original.

Enjoy!

Authentic to the original with some modern polish

• Nothing was redrawn. Every level, every sound, every note comes straight out of the original game.
• It plays exactly like it did. Same movement, same enemies, same feel—checked against the original as best as I could.
• It still looks and sounds like the 90s. The chunky pixels and the tinny little soundtrack are the real ones.
• You zorch, you don’t kill. The goofy, kid-friendly tone is all still here.

What’s in it

• All five levels start to finish.
• The whole arsenal up to the Super Bootspork and the LAZ Device.
• Every enemy: the big Flembrane boss fight and the ending.
• All the trimmings: the map screen, the menus, pause, the score screens, everything.
• A secret bonus level hiding in the menu…

Bonus: Liberty Hall 250

I built an extra level to celebrate America’s 250th birthday since I finished making the game right around July 4th.

It’s called Liberty Hall: a colonial portrait gallery with a grand hall built around the Liberty Bell, the Declaration of Independence up on the wall, a vault full of weapons, and a red-white-and-blue teleporter that drops you into the first level with the whole arsenal in hand.

You’ll find it right on the main menu.

Plays anywhere

• Keyboard and mouse, touch on your phone, or a game controller. Your pick.
• Nothing to install. It runs in your browser.

How it’s made

There’s no Doom engine hiding inside this and no emulator pretending to be a 90s PC. It’s all built fresh with today’s web tools but made to behave exactly like the original. Right down to the music which is made the same way the old sound cards made it so it sounds a little tinny on purpose.

I built the whole thing in 28 days with help from AI coding agents—the same way I make everything now. (For the curious: it’s TypeScript, Three.js, Pixi.js, and 75k lines of custom code.)