Newgrounds Rumble

Newgrounds Rumble asks a very Newgrounds question: who would actually win, if the site's own cast of recurring characters had to fight it out for the right to rule the place? Pico squares off against Hank J. Wimbleton, Alien Hominid trades hits with Salad Fingers, and the artist MindChamber draws every one of them consistently enough that the roster reads as a single game rather than a clip-art crossover. It's easy to see why the community loved it enough to hand it the very first Newgrounds Tank Award for Game of the Year in December 2007 — the site's highest honour, in its debut year, against every game the whole site had produced in 2007. What's worth asking, from this distance, is whether the game underneath the cast holds up as well as the cast itself.

A tournament built out of the site's own folklore

The premise is a mascot tournament with the site itself as the prize: beat everyone else and you rule Newgrounds. That's a thin excuse for a story mode, and it isn't trying to be more than that — what it's really doing is legitimising a roster pulled almost entirely from other people's Newgrounds properties. Pico and Samurai Asshole come from Tom Fulp's own back catalogue; Alien Hominid, Salad Fingers, Tankman and Hank J. Wimbleton are guest cameos from four completely separate, independently famous Newgrounds series folded into one fighting game. Getting the rights to draw all of them consistently, on one team, without a publisher forcing the crossover, is itself a small piece of Newgrounds' community culture working the way the site liked to claim it worked — user-made content borrowing and elevating other user-made content, credited and apparently uncontested.

The credited team was small: NegativeONE handled programming, MindChamber the art, and Luis Castañón co-created the game and did additional character animation, with Evil-Dog scoring the soundtrack and Afro-Ninja credited for additional development support. It was in the works since December 2005, roughly eighteen months before it shipped — a long build cycle for a free portal game with no funding beyond whatever Newgrounds' own advertising paid the team.

A brawler wearing a platform fighter's clothes

The comparison every writeup reaches for is Super Smash Bros., and the surface similarity is real: a stage, a colourful cast, special moves mapped to a handful of keys. But Newgrounds Rumble resolves its fights the older way — deplete the opponent's health bar and you win, with no knockback-based ring-out at all. That's a meaningfully different game to design and to play. It means the roster's differentiation has to do more work carrying the combat than Smash's stage hazards and launch trajectories would, and community-compiled character breakdowns suggest the designers understood that: Alloy trades range for speed, P-Bot trades speed for reach, Nene and Samurai Asshole hit hard but slowly, and so on down a cast built around genuine rock-paper- scissors trade-offs rather than reskinned stats.

Where it falls down is execution, not concept. Community documentation of the cast notes that some characters' listed stats — health values in particular — don't match how they actually perform, the kind of gap that suggests the numbers shown to players and the numbers actually running in the fight code drifted apart at some point in a long, patched development. The developers evidently agreed something needed fixing: the September 2007 update was explicitly a balance and bug-fix pass, on top of adding the four-player mode. And Henchman, one of the unlockable secret characters, is acknowledged even in affectionate fan writeups as a barely-functional joke entry rather than a real thirteenth fighter — a downgraded Hank added for a laugh, not for competitive play. None of that makes the game unplayable, but it does mean the "deep fighting game" half of its reputation is doing more work than the actual balance earns it.

Two years of free support, which was not the norm

What actually is unusual, for a free 2007 Flash game with no subscription, no premium tier and no storefront of its own, is how long the team kept coming back to it. Beyond the September 2007 balance and four-player patch, a Madness Day update that same month added Hank J. Wimbleton to the roster, a further update in May 2008 added Fancy Pants Man from the Fancy Pants Adventure series, and an August 2009 pass integrated Newgrounds' own Medals achievement system and fixed at least one reported bug that let players fall through the floor. That's a two-year content tail on a game that owed nobody a sequel, a DLC pack or a live-service roadmap, funded by nothing more than the ad revenue a popular Newgrounds submission generated. It's also, cross-referenced against Kongregate's own listing — which still describes "10 unique fighters" rather than the twelve-plus of the final build — good evidence that the game's life on other portals didn't track its life on Newgrounds; Kongregate racked up over 950,000 plays and Addicting Games over 1.1 million on what appears to be an earlier, frozen version, while Newgrounds itself kept receiving updates for two more years.

What it cost, and where it lived

There's no sponsor to name here, which is itself worth stating rather than skipping past: this was a Newgrounds-native production, hosted and monetised the way native Newgrounds content generally was in 2007, through the site's own advertising rather than a portal-exclusivity deal. It was never gated behind a single site — it appeared, non-exclusively and for free, on Kongregate and Addicting Games as well, without a paid tier anywhere in its history. For a genre that would spend the following decade experimenting with premium unlocks and portal-lock sponsorships, a game that just gave away its full four-player, multi-mode package everywhere it landed is a small point in its favour.

Whether it still runs today

Checked 5 September 2026: the game is preserved on the Internet Archive as multiple .swf builds with period screenshots, it's catalogued in BlueMaxima's Flashpoint, and Newgrounds itself still serves it through the site's own in-house Ruffle-based player, the mechanism Newgrounds adopted to keep its legacy library running after Flash's public end-of-life in January 2021. There's a real caveat sitting inside that, though: the third-party preservation site Flash Museum notes it deliberately serves an older build of Newgrounds Rumble rather than the most-patched one, because the later build depends on a live HTTPS API call — most plausibly tied to the 2009 Newgrounds Medals integration — that no longer resolves, and getting a later build running at all required removing that call by hand. In practice, that means the version most people will actually play today is not quite the final, most-content-complete one the developers shipped in 2009.

Final verdict

Newgrounds Rumble earns its place in the site's own history honestly: a small, uncommissioned team built a genuinely differentiated fighting roster out of Newgrounds' own recurring characters, supported it for two years after launch on nothing but ad revenue, and the community rewarded it with the first Game of the Year the site ever gave out. That's a real achievement for a free 2007 browser game. What keeps the score at a 7.0 rather than higher is that the fighting underneath the cast is a fairly ordinary health-bar brawler with documented balance rough edges, not the Smash-calibre platform fighter its nickname implies — and that the version most players can actually reach today is, by the preservation record's own account, an earlier build than the one the developers left it on.