diff --git a/docs/library/opera.md b/docs/library/opera.md
index 75800c54ff..8fed42f150 100644
--- a/docs/library/opera.md
+++ b/docs/library/opera.md
@@ -195,6 +195,15 @@ Settings with (Restart) means that core has to be closed for the new setting to
 | L                            | ![](../image/retropad/retro_l1.png)            |
 | R                            | ![](../image/retropad/retro_r1.png)            |
 
+## Mouse
+
+| RetroMouse Inputs                                     | 3DO Mouse        |
+|-------------------------------------------------------|------------------|
+| ![](../image/retromouse/retro_mouse.png) Mouse Cursor | 3DO Mouse Cursor |
+| ![](../image/retromouse/retro_left.png) Mouse 1       | 3DO Mouse Left   |
+| ![](../image/retromouse/retro_right.png) Mouse 2      | 3DO Mouse Right  |
+| ![](../image/retromouse/retro_middle.png) Mouse 3     | 3DO Mouse Middle |
+
 ## Compatibility
 
 - [Opera Core Compatibility List](http://wiki.fourdo.com/Compatibility_List)
@@ -207,4 +216,4 @@ Settings with (Restart) means that core has to be closed for the new setting to
 - [Libretro Opera Core info file](https://github.com/libretro/libretro-super/blob/master/dist/info/opera_libretro.info)
 - [Libretro Opera Github Repository](https://github.com/libretro/opera-libretro)
 - [Report Libretro Opera Core Issues Here](https://github.com/libretro/opera-libretro/issues)
-- [Gameplay Videos](https://www.youtube.com/playlist?list=PLRbgg4gk_0IeD-Mj2GG13qsYasGgRNQg4)
\ No newline at end of file
+- [Gameplay Videos](https://www.youtube.com/playlist?list=PLRbgg4gk_0IeD-Mj2GG13qsYasGgRNQg4)