Grow a Pet Fighter Badges and Game Passes: What We Measured

Zero badges, verified as an empty result rather than a failed request, and exactly one game pass at 199 Robux, found after we had this page wrong.

The correction this page is built on

Until 10 September 2026 this page said Grow a Pet Fighter had no game passes. That was wrong. It sells one, called 2x Money, priced at 199 Robux, created on 18 August 2026 and last changed on 1 September 2026.

The mistake is worth describing precisely, because it is the kind of mistake this whole site is supposed to be arranged against. We had queried the older endpoint, games.roblox.com/v1/games/{universeId}/game-passes, and it answered 404 Not Found. We recorded that as no passes. A 404 is not an answer to the question asked, and we know that now because the same URL also answers 404 for other, much larger games that certainly do sell passes. The endpoint that works for signed-out readers is apis.roblox.com/game-passes/v1/universes/{universeId}/game-passes?passView=Full, and it returns this game's single pass as an ordinary response.

An empty list and a failed request are different things. Sites get this wrong constantly, usually in the direction of reporting an absence they never established, and we had done the same thing here. The rest of this page states which endpoint produced which figure so that you can check our work.

The one thing the game sells

One item, and it is worth reading carefully rather than skimming, because the name is the whole of what it does: 2x Money, 199 Robux, on sale now, created two days after the game launched and changed once since. It doubles money. It does not name a pet, an egg, a tower, an arena or a level.

That tells you something about the design even though the description does not. The developer built a currency system, decided it was worth doubling, and put a price on the doubling. So cash is the resource the game is built around, which is consistent with the description's last line about pets generating cash offline. What cash buys is a separate question that the game's own description never answers, and we cover it on our page about what to spend cash on.

Zero badges, and why that is a real reading

Roblox's badge endpoint answered for this game's universe ID on 10 September 2026 and returned an empty list. The call succeeded, the game exists, and the badge set is empty. That is the definition of a verified zero, and it is a different claim from we could not reach the badge endpoint, which is what several other figures on this site have to say.

Zero badges has two consequences. The first is that there is no completion-rate data for this game at all, so the player funnels that other Roblox wikis build out of badge win rates, how many players reach the first milestone and how many fall away before the second, cannot exist here. The second is more subtle: on most games a badge name is the fastest way to learn about a mechanic the developer never documented, because developers create badges for content that exists. This game gives us none of that, which is one of the reasons so much of this site is written from five sentences.

Our collector re-reads that endpoint every six hours, so if a badge appears it will show up on this site the same day rather than at the next rewrite.

What we still cannot see

Roblox sells single-purchase developer products through a different endpoint from game passes. We tried two documented forms of it on 10 September 2026 and both returned 404, for this game and for a large game we tested as a control, which tells us the endpoint is not open to signed-out readers rather than that either game's product list is empty. So the honest statement is that one pass is the floor of what Grow a Pet Fighter sells, not the ceiling.

There is also the ordinary possibility that this changes. The developer added the pass two days after launch and edited it a fortnight later, so a list with one item in it is a snapshot of a game that is five weeks old rather than a fixed fact. Every figure on this page carries the date we read it for that reason.

How this compares with the game next door

Grow a Chicken Fighter is the biggest game in this naming family by a wide margin and it is worth one line for scale: it sells a pass called King of the Coop at 1,499 Robux, which we read the same way on the same day. That is seven and a half times the price of this game's only pass.

The comparison is not a criticism of either developer. It is a reminder that a pass list is a design decision rather than a measure of greed, and that the number of items a game sells is not the same as how much it costs to play. What actually matters is in the next paragraph, and it is here rather than on any other site because nobody else seems to check it.

What we have not checked

We have not bought the pass, so we cannot confirm what 2x Money doubles in practice, whether it stacks with anything, or whether the effect is immediate. We have not seen the in-game shop, so we do not know whether passes are advertised in-game at all. We have not read the developer products list, for the reason given above. And we have not tested whether a second pass was added between our last read and your visit, which is the one thing a reader can check faster than we can: the game's own store page shows its passes.

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