There's no need to suffer from decade-old resolutions while playing Disney Bolt. In this guide, I explain how to enable 1920x1080 resolution. I haven't tested other resolutions, but I assume you can just change the numbers. If your display ratio is really weird though, you may run into issues with stretching (not tested).

1. Download DXOverride from Humus's page: https://www.humus.name/index.php?page=Cool. This library hooks into DirectX calls and allows overriding some values like screen resolution and transparency method.

2. Put d3d9.ini and d3d9.dll from the downloaded ZIP file into your game's directory. By default, it's C:\Program Files (x86)\Steam\SteamApps\Common\Bolt. If not sure, right-click the Bolt game in the Steam library, then choose Manage > Browse local files from the context menu.

3. Open d3d9.ini in Notepad and change its contents:
If you run the game now, your display will switch to 1920x1080 resolution already, but the in-game resolution will remain low, so everything will be pixelated.

The Bolt game stores various "effects" in OCT files. These are just text files that can be edited with Notepad.

1. Create a backup of the file data_dx\display2w.oct file from the game directory (the game directory is the same as in the previous section). You can do this by selecting the file and pressing Ctrl+C and Ctrl+V. This is a safety measure in case editing of the file goes wrong. You can also just use Steam's function of fixing game files, but it's slower.

2. Open data_dx\display2w.oct in Notepad. I assume this configuration file refers to "high quality wide-screen" configuration.

3. Find ALL instances of 1440 and 900 and replace with 1920 and 1080, respectively. If you want to use Edit > Replace in Notepad, make sure to put spaces before numbers, for example, find " 900", replace with " 1080". Otherwise you may break numbers like "215.790000".

Almost done!

Run the game using Steam. Make sure to choose High settings in its launcher, otherwise another configuration file, an unmodified one, may be used.

Everything should look perfect. Game textures are good enough to look fine on modern displays (unless you're playing in 4K, of course). Pre-rendered videos in between levels will remain 1280x720, but that's just a bit blurry, literally like watching 720p on 1080p display.

1. My game doesn't start!

Did your game work before changing anything? If it didn't, tough luck. If it did, make sure you haven't missed any of the values in d3d9.ini. From what I've heard, ForceAlphaToCoverage = 0 part is really important.