Coolkidd

What Coolkidd Actually Is and Whether It's Worth Your Time

Coolkidd is a fan-made ROM hack of Pokémon FireRed that reimagines the Johto region with an entirely custom storyline, new characters, and tweaked gameplay mechanics. The developer, known online as Coolkid96, released it around 2017 and it gained a small but dedicated following on the Pokemon ROM Hacks Discord and the Serebii forums. It is not an official product, it does not appear on any Nintendo platform, and it runs exclusively through emulators like mGBA or VBA. I spent about forty hours playing through it last year after a coworker sent me the link. The story has actual pacing problems in the mid-game, but the battle designs are solid and the custom Pokémon sprites and overworld art are above average for a solo dev project. Here is how to get it running and what to expect before you bother.

Downloading Coolkidd safely

The original ROM file lives on the Pokémon ROM Hacks forum in the "Completed Hacks" section under the Coolkidd thread. You need a forum account to access the download link, which means email verification and a little bit of waiting if you are getting on there for the first time. The download page also links to a patch file, but the patch is unnecessary unless you already own a clean FireRed U.S. ROM and want to apply only the diff. The direct download is roughly 48 megabytes and includes the patched .gba file along with a readme text file and a credits list. Do not download Coolkidd from third-party sites that bundle it with ads or ask you to run an .exe installer. Those are either malware or outdated copies someone repackaged without permission. The legitimate distribution channels are the ROM Hacks forum and the GitHub mirror that the developer periodically updates. The GitHub repo, if it is still active, usually has the latest version number listed in the repository description. As of my last check, the most recent version was something like v1.3, but I would verify that before downloading anything because version numbers drift over time on fan projects.

Installation and Setup

You need two things: a clean FireRed (U.S.) ROM and an emulator. I use mGBA on desktop because it handles sync and save states better than VBA-M, which tends to desynchronize audio if you mess with the frame skip setting. The emulator itself is not part of this package. You provide your own base ROM from a cartridge you own, which is the standard expectation for ROM hacking distribution. Once you have both files, extract the Coolkidd .gba wherever you want. It will run standalone. No installer, no patch application step, no configuration file to edit. The developer already baked the patches into the final ROM, so the download is a complete playthrough-ready file. Load it, go to Title Screen, and you are in. One thing worth noting: the game saves to its own save file separate from vanilla FireRed. I learned this the hard way after loading my clean FireRed save, assuming the hack would auto-detect it. It did not. Instead, the game showed a corrupted-looking text error screen that I had to close out of. Since then I have just kept a dedicated emulator profile for Coolkidd and never mix the two ROMs in the same save directory. That prevents any accidental overwrite of your vanilla save states.

How the Game Actually Plays

The main plot follows a custom protagonist who enters the Johto region, interacts with an expanded cast including original NPCs with quest chains, and eventually confronts a team called the Eclipse Syndicate. The battle roster uses custom moves, revised type matchups, and several new Pokémon species that the dev designed or adapted from other hack projects. The sprite work is mixed. Some of the custom Pokémon look fine at standard resolution. A few of the rarer species have pixel-perfect issues when you zoom in, which is normal for a one-person project but something you will notice if you toggle map zoom in your emulator. The difficulty curve is steeper than vanilla FireRed in the early routes. I expected to breeze through Route 29, but the trainer layouts use double battles and the level spread hits harder than the original game. You will want to hit the Pokémon Centers between zones, but even then there are moments where your party needs more than level 15 to break through. The game does hint at grinding, but it does not force you to do it extensively if you pay attention to type matchups and item management.

Common Pitfall I Hit Early On

During my first playthrough, I missed a side quest in Ecruteak City that grants a key item needed to access a later area. The game allowed me to progress through the main story path without that item, which made me think the quest was optional. It was not. When I hit the door that required the item later, the game locked me out and gave me zero hint about what I was missing. I had to reload from a save state about eight hours earlier. My workaround was simple: I started keeping manual save states at every building entrance and at every major story beat. The game has a pause-menu save system that works fine in mGBA, so I used three save slots per area and never advanced the main plot without creating a fresh one. It added maybe ten minutes to the total playtime across a thirty-hour run, but it prevented a softlock that would have cost me two or three hours of rewinding. The combat encounters are the strongest part. Enemy team compositions use reasonable synergy, and the boss fights are not just level-check wallows. There is a gym in Cianwood that uses a hazard-based strategy, and the design is competent enough that it feels deliberate rather than random. The story has some dialogue that is fine and some that reads like placeholder text the dev forgot to replace. I encountered a few NPCs whose sentences repeated the same three lines in different orders, which pulled me out of immersion more than any bug did. The soundtrack pulls from FireRed assets and a handful of custom tracks. The custom tracks are functional. They do not elevate the game, but they do not clash. If you are playing through with headphones, the ambient cues during story scenes are noticeable and occasionally well-timed. During random encounters, the music switches cleanly without the audio stutters I have seen in other ROM hacks that reuse too many banked sound pointers.

Graphics performance is stable on emulator. I ran it at 2x resolution on a ten-year-old laptop without frame drops. The only hiccup I saw was a brief freeze when transitioning into a specific cave area on my first playthrough, which turned out to be a one-time event bug that did not affect subsequent visits. The developer never released a patch for it, but it is avoidable by saving right before you enter that zone.

Should You Play It

It is a solid mid-tier ROM hack. Not legendary, not broken. The story has gaps, the difficulty scales unevenly, and a few quality-of-life features from later hacks are missing, like automated key-item routing and better hints for optional side content. If you want a polished experience, look at projects with larger dev teams and longer development cycles. If you want something that is complete, playable, and shows genuine effort from a single creator, Coolkidd is worth the hour or two it takes to set up and run through once. One more practical note: the game does not support multiplayer or trading with vanilla FireRed due to custom move IDs and new Pokémon entries. If you plan to trade between ROM hacks, stick to the same version or a shared hack that mirrors the same species data. Attempting to trade Coolkidd saves with a clean FireRed ROM will corrupt the party data. I tested that myself on my second playthrough because I thought I could move a custom Pokémon into my main ROM. The game accepted the transfer and then crashed to black on the next load. Corrupted the save file entirely. That one cost me about forty minutes of progress before I realized what happened and went back to a fresh state. If you decide to try it, keep your emu settings on default, avoid mixing save files across versions, and do not rush through the early Johto routes without checking every NPC in the smaller towns. The side content is where most of the extra quality in this hack lives, and skipping it makes the middle section feel thinner than it actually is.