Help
Star, Mushroom, Boo or a sustained turbo for as long as you choose.
Your chat rides along in the kart: they gift you Stars and Mushrooms, hit you with lightning, spin-outs and forced steering, or slow down and spin the rivals mid-race.
Four stops, in under a second.
From TikTok, Twitch, Kick, YouTube or Starvios: a gift, a follow, likes or a chat command.
Receives the event, checks your active profile for the matching effect and sends it.
The program the app uses to run Mario Kart 64 on your PC, plus the OverInteractive connection the app adds to it.

The effect hits your kart or the rivals instantly, in the middle of the race.
Everything happens from the game's status bar, at the bottom of the app.
In the bar below press «Download runtime». It downloads once and the app keeps it in its own folder.
Press «Choose ROM» and pick your .z64, .n64 or .v64 file (if it's in a .zip or .7z, extract it first). The app checks it is the US one; if not, the step turns red and tells you why.
The exact list of versions that work and don't is behind the help icon in the bar below.
Press «Enable connection» with the game closed: the app downloads what the game needs to receive effects and puts it in place.
The first time, the game reads your ROM and builds its files in a few seconds. It asks nothing: don't close the window meanwhile. After that it starts straight away and the ROM is no longer needed.
Before that first launch the app shows you these steps in a window.
When the bar below shows «Connected», press Start (Space) on the title screen and pick mode, engine class, driver and cup with A (X). Mario GP is the fullest mode. Effects land during the race.
In «Profiles» create an example one in a click or build your own: each gift, follow or chat command fires the effect you pick.
Each effect is assigned to a gift, a follow, likes or a chat command.
Star, Mushroom, Boo or a sustained turbo for as long as you choose.
Shrinking lightning, spin-out, squish, shell hit, locked controls, forced steering left or right, slowdown and a 180° spin to face backward.
The same hits on every CPU driver at once: spin-outs, lightning, squishes, forced steering, slowdowns and 180° spins.
The European and Japanese versions, fan translations and romhacks can't be converted, so the app won't let you use them. The game has almost no text: the US version plays the same in any language. The app doesn't download or distribute ROMs.
Enabling the connection, installing or removing the texture pack and uninstalling the runtime are done with the game closed.
Effects that arrive on the title screen, in menus or between races wait in a queue and fire when the next one starts (for up to 10 minutes).
«Against the rivals» effects hit the drivers the game controls. In a mode without CPU drivers there's no one for them to affect.
Download OverInteractive for free: this same guide is waiting inside the app, in the game's «Start» tab.
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